7.5 shouldn't take up too much more memory. This guy has a 500-meg drive but over 100 megs of it seems to be unaccounted for. He's probably running Virtual Memory. Virtual Memory creates an invisible swap file on the hard disk that is the size of not only the additional virtual memory being created via the Memory control panel but also the real memory installed on the computer. Photoshop also creates invisible swap files on your hard disk.
Some switch boxes require a restart after switching.
Last Friday, Apple announced that 4100 employees would be laid off. They feel betrayed and that they can't trust Apple. Heidi Roizen knew this was coming and got out because she didn't want to be a part of it. I really like Microsoft's Internet-savvy Office suite. It handles HTML really well.