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Question: Mac Friendly? The Garmin Forerunner 305 software was not Mac friendly, so I only used it a few times before dumping it into my box of junks.
Document: The software and website are generally nice, although Garmin seems to have stopped supporting the software, which has recently been having problems, and they are encouraging users to simply rely on the web application, which is good for the mapping function but not as useful for training analysis. When I've needed customer support for the software or web app, I can say that staff were very helpful, friendly and knowledgable.I used this product for about a year, and grew to hate it.
I've owned the Garmin Edge 305 and various Polar heart rate monitors. Overall I'm very impressed with the Forerunner 405  -  except for the lack of Mac support.First of all the size of the device surprised me. It's actually fairly small, especially compared with the clunky previous Forerunners. Smaller than my Suunto watch. Second I like the ability to choose different data fields (up to 3) on customized displays. This is like the Edge 305 and much better than the Polar devices.
I originally ordered the 305, but it was so big and awkward looking I returned it. Against some of the less than stellar reviews of the 405, I bought it anyhow. I love it. It just looks better, is lighter, and does not feel like a PDA on your wrist. Granted, the touch dial takes some getting used to, but chances are you are a gadget person like I am, and once you get it wired, it's pretty user friendly.
I have owned two previous versions of forerunners and this one is very nice mostly because of its size. It is really no bigger than an average training watch and works as well as my large garmin forerunner. The touch sensitive bezel does take some getting used to and makes the ui a little awkward at times.
After reading a whole lot of reviews about this product, I was in two minds whether to go for the Forerunner 305 or still take a chance on the FR 405. I decided to play it safe and bought the FR 305. I was amused when the same night, I got an email from Amazon that the FR 405 was now available in a Gold Box deal for 149$ as compared to the usual 190+. So I went ahead and ordered the 405 as well. I'm glad I did so.
My Forerunner 405 stopped working after 2 months. The buttons started to malfunction and after a few days the display is completely gone. I only used the watch for about 12 times. I typically run about 3 to 5 miles so I expected this watch to last for a while. I definitely would think twice about buying garmin watches.
I used the watch for about 2 1/2 years; it replaced a Garmin 305. It worked well with two or three different times (fortunately never on race day) that it acted very weird -- turning on and off incessantly. At least once it did it for about five minutes before operating normally; the most recent time I didn't feel like waiting to see when it would work and decided to run with a different watch.
I wrote to Garmin and we walked through all the settings that I had gone through to establish my Pace Zones and create a new 'advanced' workout. We all agreed that the 405 should be alerting me when outside the defined zone for the workout. They concluded they would have to escalate my problem to their engineering group to see if we were missing something. I've used the Forerunner 305 in the past. It is an excellent GPS enabled sports watch/HRM.
I bought the watch on July and although it works great I have experienced software problems such as it freezing up. Garmin told me the problem could be fixed by upgrading the software. They promised to have software available for the Macintosh Computer by this Fall and now say Winter 2009. If you use a Mac DON'T buy the 405 until they have the software for the Mac which might be never. Also if you call Garmin Support plan on being on hold for at least 30 minutes.
There  was  no charging  clip in  the  box with  Garmin  Forerunner 405 in spite of the  fact that  it  was  signed  on  the  box :( I  live in Russia and  now have very  big  problems to  buy this item
Answer: You might want to check out Ascent from Montbello Software.  Mac native and runs circles around Garmin Training Center for the 205/305.  I'm using it for my 405, but only after exporting a file in windows from GTC and importing it into Ascent.