I was skeptical after reading that much of the hardware for the Inspiron 6000 wasn't officially supported, so I went out and bought a fresh 250g drive for $80 at Best Buy and decided to try a fresh Windows 7 install. I figured if things didn't work I could put the stock 30gb drive back in.
My inspiron 6000 has 1gb of ram. The install for a new hard drive is pretty simple. Flip the machine over and look for the image of the cylinder typical of a hard disk icon. There are two screws on the bottom, then the hard disk slides out. Two more screws on the side and an adapter on the end. Took me only a few minutes to upgrade the drive.
Surprisingly everything just worked with the stock Win7 install + updates. Even the wireless works just fine, though I connected it wired first to install updates. The machine is pretty snappy, and the video score is a 1.0. There may be a way to make things slightly faster by finding other drivers, but I'm happy.