Recommend a videocard for upgrade

Say I were to buy a computer like the one below. What videocard would you recommend for upgrade? The power supply is 300W, so that may have to be upgraded as well. Please note the Expansion Slot limitations below. I would like the total price for videocard and possible power supply upgrade to be less than $200 (but prefer closer to $100). I am not interested in playing first-person shooters like Crysis. I generally want to play adventure, simulation, racing, etc. that were released in the last five years.

PROCESSOR • AMD Athlon™ II X4 620 Quad-Core Processor
PROCESSOR SPEED • 2.60GHz
CHIPSET • NVIDIA MCP78V Chipset
CACHE (L2) • 2MB L2 Cache
BUS SPEED • 4000MHz System Bus
MEMORY • 8GB PC2-6400 DDR2 SDRAM memory (4x2048MB for ultimate performance) (expandable to 16GB)
VIDEO GRAPHICS • NVIDIA GeForce 9100 Graphics with 256MB integrated shared graphics memory. Up to 3838MB Total Available Graphics Memory as allocated by Windows® 7
MEMORY SLOTS • 4 DIMM (240-pin, DDR2) (occupied)
EXPANSION SLOTS • 3 PCI Express x1 (two available)
• 1 PCI Express x16 (one available)
EXPANSION BAYS • 2 external 5.25" (one available)
• 1 external 3.5" (one available)
• 2 internal 3.5" (one available)

XFX 4850 - $114

Antec Earthwatts - $70

Total - $184 before tax and shipping

XFX 4850 - $114

Antec Earthwatts - $70

Total - $184 before tax and shipping

Duckman5

and that my frienbds was a little taste of heaven. though you can find cheaper 4850's

is that a pre-build ? i see ? must costed you an arm and a leg ;) : well that upgrade to XFX 4850 is still nicemarcthpro

really ? 500$US ? for all those ? then it sure a bargin as
OS worth 125$ / Free if window 7 RC build 7100 Work until 2010 Q3 Around June (know few people who run that)
HDD 1TB 80$ :
Display Monitor 19-22 125-200$ :
cpu better then this 100$ (phenom II X2 550 :
Ram memory 4x2GB 80$-100$ but over-kill 4GB is enough
Case 30-50$
PSU 50-70$
keyboard-mouse standart setup at 20-30$
Printer : unknow price :P

well if you get any HD4850 it will give a good performances enough you but the psu you got is probaely some 280W-350W so you need a new PSU shame that is the problem of pre-build they lack of quality part :(

I am confused about compatibility. I have been under the impression that I would have to get an Nvidia card. Will I also be able to choose from Radeon? I thought the motherboard determined the type of videocard allowed?

I am confused about compatibility. I have been under the impression that I would have to get an Nvidia card. Will I also be able to choose from Radeon? I thought the motherboard determined the type of videocard allowed?

Banjo4321

[QUOTE="Duckman5"]

XFX 4850 - $114

Antec Earthwatts - $70

Total - $184 before tax and shipping

aura_enchanted

and that my frienbds was a little taste of heaven. though you can find cheaper 4850's

[QUOTE="Banjo4321"]

I am confused about compatibility. I have been under the impression that I would have to get an Nvidia card. Will I also be able to choose from Radeon? I thought the motherboard determined the type of videocard allowed?

Luminouslight

well this and nivida costs an arm and a leg :P