The selections are arranged alphabetically by category. For the latest free version of the browser of your choice, click the icon to the right and download. While I prefer IE 5.5 for many reasons, I have to give Netscape high marks for their Netscape Composer, which is built right in. Do not pay money to any retailer for these programs.
Opera is a highly regarded browser.
The full specifications are available on their Web site. Opera generally performs better than Netscape, but in some ways not as well as I.E. 5.5. In short, Opera is a great developer's tool. Give it a try. Without a doubt, Netsonic is the answer to your need for quick response time on the web.