I'd get the 7600GT if that's all you're planning on using. If you're still playing those games, then I doubt you'll need anything more (but there is a new Flight Simulator coming I think).
BTW, is the Samsung monitor you have the 215TW? If it is, mind giving me your opinion on it? I'm looking into it as a all in one solution (display for my upcoming build using DVI, Xbox 360 via VGA, GameCube on component, and PS2 on S-video). I'd just like to know if you can actually do everything nicely on it... it's a $500 choice and I'd like to make a good one.8O
Thanks for the opinions all...I'll still got some time before the build, so I'll see where my finances and the price drops take me.
Vinny, I do infact have the Samsung 215TW...bear with me as I list my thoughts:
I have to tell you, I love it. In terms of general usage, it's incredible...all that extra real-estate is addictive. I can have two full-size documents fill the screen, web browse and watch TV/videos, or just have a full 21" TV. The colors, IMO are excellent: you might want to make a few color adjustments as I did, but it's really not necessary...right off the bat, it's beautiful. The auto-rotation feature is pretty nice, and the color adjusment, and picture adjustments (brightness, contrast, presets, etc.) can all be configured using the mouse as well. I don't use the PIP at this point.
Haven't used all the inputs yet...I wanted to make sure I could hook up a PS3 to it via component (and have HDCP, though it's moot now) next year, but I need to try my PS2 on the S-video as well. I'll try it out and let you know how it looks.
In terms of gaming, the only one I've played on it is Tomb Raider Legend, which looks fantastic at native resolution (though with a 9600 XT, the detail isn't maxed)...no problem with ghosting or anything. I haven't tried a FPS like COD2 on it yet (like I said, haven't played it recently), but GTR looks great too.
HD video looks amazing as well...I've played quite a few 720p and some 1080i (it'll play 1080p as well, but I think it officially supports up to 1080i) vids. Part of the reason I'm upgrading to is to get better gaming and HD video performance from my current A64 3000+, so I'm definitely looking forward to my new system.
Couple bits of advice: if this is your first large widescreen-monitor, be sure to move it back from your old monitor's usual position. The 215TW has a 1000:1 contrast ratio; i.e. it's bright as hell. Combine that with the larger size, and your eyes will hurt within minutes...crank the brightness down and move it back!
I read a lot of posts to research what monitor I was going to buy, but nothing beats going down to the store and looking at it. That said, a lot of stores have these monitors on VGA cables, which looks like absolute crap compared to DVI. I would advise you get it from a store and try it out on everything you normally do. That way, if you find it's not the right one for you, or there's an initial problem, you can bring it back immediately and try something else.
This is getting a little long, so I'll end here. Let me know if you have any other specific questions...I'll be glad to help.
And yeah, Flight Simulator X should be out come December...definitely looking forward to that!