alright i can explain a few points of view on this card...first off how much does the one you are looking at cost?
Anything over $100 on the 9550 is too high (since the 9550XT is $99 on newegg)
So, this is a value graphics card...I am assuming you haven't bought it yet...it is the ATI version of nVidia's GeForce 5500 (I am pretty sure these 2 are in the same league...price wise they are)
But anyways if you are looking to game, I would go for the ATI Radeon 9600Pro/XT, unless you want Doom 3 in which case I would go for the Radeon 9800 (read 9800, not the Pro or the SE). I have the 9600Pro on my system, it's about 4 days old and so far I have had zero issues with any of my games (the most graphicly intensive game I run is Halo, and the 9600Pro will play it fine)
So I would buy what you need. The 9550XT 128MB is what I almost bought, and then I thought...for $14 the 9600Pro is going to be a better performer...once you move out of the value card range you can get some nice stuff (the 9600Pro may be considered Value-Range today, but 6 months ago it was mid-range...and all my games are about the same age or a little newer, I don't want FarCry or Doom 3 so it's sufficient to play Halo or Unreal Tournament 2004)
What are you looking to do with your computer?
What graphics card/chip do you currently have?
If you want to do basic desktop things: like browsing the internet, e-mail, office programs (like word processing) basicly applications that aren't computer games, that card is a little overkill...you can do basic desktop apps with a GeForce4 MX-440...which is alos capable of playing Halo...but I am not sure if the level at which it plays Halo is acceptable to some (I run my MX-440 on my other box, it will play Halo with lowered settings) The number one question is what do you plan to do?
I want to know people's opinion on this video card:
Connect3D ATI RADEON 9550 Video Card, 256MB DDR, 128-bit, DVI/TV Out, 8X AGP. Is it any good? What is good about it and what is bad about it? If you want to recommend a video card you can. Thanks.