you're welcome, jg. i posted that simply because you gave very wrong info not only here but in another thread that was asking about the same question. one time i'd have let slide, but when i saw both i figured i'd, uh, let you know.
what you also forgot about is that 4 gigs of good ddr2 800 memory is 41$ shipped at newegg right now. upgrading for 4 gigs isn't a big deal, but it's cheaper than any other upgrade to do to your system (besides adding a dvd-burner), and THAT makes 64-bit computing worth the time. plus, if more of us do it, more people will start writing for it...and then it'll become more mainstream.
and, when you're working on huge music files, that last 800 megs actually can be the difference between bluescreening and being able to work on your song. particularly if you're running several instances of large, ram-heavy programs.