Did everything you are proposing to do, and I can say that you will not be disappointed. My $9.99 B&W started life as a stock 300 MHz Rev. A, and is now quite happy with maxed ram, a big ATA hard drive, a DVD-RW drive, a Sonnet 1 GHz G4 processor upgrade (finding a cheap one of these was a big help), and PCI USB 2.0, Radeon 9200 & ATA-133 cards. Most of these parts were hand-me-downs / surplus, and didn't cost an arm and a leg, either.

Running Tiger, it's hard to believe that this is a 10-year old machine.

Good luck with your project!