That Radeon was a smokin' vid card a few years ago
One thing to look for is...
Does your vid card have a DVI Out?
Some LCD's have both Analog & DVI (Digital) plugs & most new LCD monitors only have a DVI plug
You want DVI if possible!
If your card doesn't have a DVI Out & you want to make it work now with your existing card??
Get a monitor with both Analog & DVI for future compatibilty.
I'm running a 20" Samsung widescreen & liked it alot better than the same monitor in 22". The 20 is a lot crisper than the 22.
Check http://www.newegg.com before you buy too.
cheers