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Hey Acill,
The Radeon 7000/7500 should have 3D drivers soon, so I'd say that's
a solid choice. Other Radeons on the supported list are fine too
(my 9000 works beautiful) but you'll have to wait longer for 3D.
The 7000 is slower (and cheaper) in comparison to the 7500, but 7000's
are fanless while most 7500's have fans. Try to get one with DDR mem as
opposed to slower SDR.
Onboard sound is OK, but I prefer a SB live (I bought
this one).
For system memory...theoretically, any DDR266 works, but check the compatibility
list to avoid the few that might not. 256 megs should be more than plenty.
Burners/DVD players...any CD burner should work. As far as DVD, get
one of those LG players...anything else, and you're rolling dice until mplayer
supports more drives.
You should be able to rock pretty much any ATX case...I bought one of
these,
and would recommend it to anyone; Cooler Master cases rule.
(the new "
cavalier" is pretty sick looking as well.)
Since you're in the US, I would wholeheartedly recommend ordering from
www.newegg.com... they flat out kick ass. Their prices are some of the
lowest, they stock everything, shipping is usually free, and fast if
you're on the West Coast. Just check their Radeon selection for
example...there's like a million 7000/7500's to pick from.
Memory, slick case, video card, SB "Live", drives/cables/etc can all
be had for WELL under $400, and that's "doing it nice".
Good luck and have fun!!!