Graphics card for a medium end system? ($200 budget)

[scheda]

My setup currently has...

4Gb of ram
2.8Ghz
600Gb HDD

But it's been at least a decade since I've considered buying a graphics card.

I'll mostly be gaming but also watching the occassional movie.

The desktop is hooked up to my 51" TV right now and working great, and while it can play older games great on lower graphics settings, anything made in the last 3-4 years suffers pretty hard.

For instance, I tried playing The Witcher today, and the gameplay is relatively smooth, but the story portions have an extremely low frame rate.

Anyway, what cards should I be looking at for a setup like this?

I'd like to spend less than $200, and I've found plenty of cards in that range, but I just don't know the first thing about what I need to look for.

Thanks in advance for any help you can lend.

Edit: To conform to the guidelines posted in another thread, here are some more details...

Time of purchase: As soon as I can decide on which card to buy.

Usage: Gaming most of the time, must work well with an HD tv as the monitor (HDMI with audio is preferred)

Current GPU: Radeon 3000 of some kind?

Power supply: Not a clue, I'd need to open it up to find that out I think.

System Model: An HP I got from WalMart, it runs much faster than my current work setup and plays older games well, just needs a graphics overhaul.

Overclocking: I'd like to, but it's not completely necessary as I don't really know much about it other than the effects and potential consequences.

Resolution: 1920*1080i at the max I believe

 

[purple stain]

What are your full system specs?(CPU,RAM,etc.)

What is the make/model of your PSU?

Depending on the rest of your configurations if your a light gamer either a 6670 or a 6770 should suit you fine and should last you about 4 years.

6770

http://www.newegg.com/Product/Product.aspx?Item=N82E16814102898

6670

http://www.newegg.com/Product/Product.aspx?Item=N82E16814127586

The 6770 being the faster of the 2.My guess is your going to need a new PSU with either choice so luckily you have plenty of room for that in your budget.

 

[scheda]

Thanks! I just updated my original post with some more information if that helps.

I'll look these over!

 

[purple stain]

Alright that is helpful but without knowing what type of PSU you have it could be dangerous.Just post what wattage it is and how many amps are on the +12/v rail(s).Their should be a chart on the back of the PSU with that info.

What CPU do you have? If your using Windows "Right Click" on "My Computer" and select "Properties".In there it should list all of your PC's info.

 

[scheda]

Surprisingly my PSU doesn't have any info on the back. Must be on the inside.

Here's the model from Wally World though.

http://www.walmart.com/ip/HP-p6523w/14575758

The only info I'm finding online right now is a 250W PSU, of course without opening up right now I can't say for sure if that's it or not.

Once the computer finishes configuring it's updates I'll open it up and see what info I can find.

Edit: I've got an AMD Athalon II X2 220 Processor, 2.8GHz, with 5GB of ram.

 

[purple stain]

It is likely a 250watt but it's made by HP so you can't really trust what the rated wattage is.Looks like your gonna need a new PSU.

Here's a good PSU.

http://www.newegg.com/Product/Product.aspx?Item=N82E16817371029

Of course if you don't exactly like the idea of replacing your PSU you can always get something like a 6570.Even such a low end card like that is much better than the onbobard GPU.Although I would reccomend you get a 6770 and replace the PSU.It will last you a long time.