On the bay...
Here are the specs:
750 MHz PowerPC 755 G3 Processor
32k L1, 256k Backside level 2 cache
100MHz System Bus
512MB RAM (Upgradeable to 2GB)
60GB hard disk drive (Upgradeable to >300MB)
8x4x32 CD-RW drive (upgradeable to Superdrive)
Two USB Ports
Two Firewire Ports
One 10/100BASE-T Ethernet
Optional Airport card (Adapter required)
Built-In 15-inch CRT display, 1024x768
16MB of SDRAM video memory
ATI RAGE 128 Ultra Pro 64-bit 3D graphics controller
Built in 56K Modem (supports K56flex and V.90)
Built in 10/100BASE-T Ethernet networking
Built in Stereo speakers
Built in microphone
Two Built in mini headphone jacks
16 bit audio input and output jacks
Mac OSX 10.4 Tiger
Cheers,
Kris