Wouldn't mind being in your position. Hmm...which new graphics card do I want?
Yeah, that's a pretty tiny PSU to be running a graphics card like that. In order to be stable you'll probably want to up the juice available. Lower wattage PSU's also tend to carry less amperage which is bad for power hungry components.
As for your overclocking question, why do you want to OC? I mean, yeah it sounds cool, but is a 6% increase in performance really going to help you out? Espcially in a SFF case, where airflow can be a problem, go with Nvidia. In my experience they run cooler. Unless you have the water cooling...
cpu = P4 3.0GHz (Northwood)
RAM = 1GB (2 x 512)
Chipset = intel 865G
1 agp and 1 PCI expansion ports
2 HDD 1 x 40GB 1 x 140GB both IDE not SATA
Mobo is SATA capabale
Curent GPU Radeon 9600XT
BIOS = AMI
Not sure if I can get a power supply with more punch that will fit in the case
I am also considering X800XL and X800XT (though I think the latter requires 300-350W power supply)
If possible I want to connect my PS2 to the card to allow me to use my TFT to play GT4 on.
I I spend no more than £150 on the card then I can also buy a box to connect the PS2 directly to the monitor
the more I think about this the more confused I get
BTW games played are BF2 and CS:Source / HL2
At the moment , baed on what I can find on UK sites to buy now, this is looking like the best bet
Then again he could overload his PSU beyond bootup = death
Hopefully only taking the new GPU with it.
EDIT: @ Crashman... "Bought a Dell" .....LOL...yea, that would have been much much better **insert sarcasm here** Actually, might save him SOME hassle, my collision course with Dell wasnt a pretty one, kinda why I had too laugh and shudder at the same time.
I didn't see anything about PS/3, which was SUPPOSED to be THE Micro ATX power supply before SFX was introduced. PS/3 has the same mounting surface as the full-sized PS/2 power supply, but a reduced depth.