Inspiron 530 graphics card suggestions

I'm looking for a graphics card for around or less than $100 that will fit into the Dell Inspiron 530 tower.

I'm pretty sure I have the 300 watt PSU, so that is a concern as well. I'm just looking for an upgrade over the Intel chipset that comes with it and I need something not too expensive that will fit into the tower without requiring a PSU upgrade. Thanks!

One important thing is that the card fit the somewhat slim Inspiron 530 tower. I've already bought a card that doesn't fit (a Radeon HD 3450), so I'd like to avoid doing that again.

Thanks for your help.

I actually have the regular 530 tower, not the 530s tower, although I could see why you would be confused by my post.

I'm pretty sure my PSU has 350 watts, so it's really a matter of making sure the card fits right.

I'm a bit confused as to why the HD3450 you had previously didn't fit, was it an AGP card meant to fit in an AGP socket ?

The exterior of the card would not fit through the expansion slot in my tower.

I went ahead and bought a GeForce 8600 GT 256MB 128-bit GDDR3 PCI Express x16 SLI Supported Video Card. Hopefully this works better.

Thanks for your help.