Try this site...
http://everymac.com/
Here's what they say:
The Apple Macintosh PowerBook G4/1.25 15" ships with an ample 15.2" widescreen TFT active-matrix display (1280x854), features a 1.25 GHz PowerPC 7447 (G4) processor with the AltiVec "Velocity Engine" vector processing unit, 512k DDR SRAM on-chip level 2 cache (3.), 512 MB of PC2700 DDR SDRAM (333 MHz), an 80.0 GB Ultra ATA/100 (4200 RPM) hard drive, a slot-loading 2X/8X/16X/4X/24X DVD-R/CD-RW SuperDrive, an ATI Mobility Radeon 9600 (AGP 4X) graphics processor with 64 MB of DDR SDRAM. Ports include Gigabit Ethernet, built-in FireWire "800", built-in USB 2.0, Bluetooth 1.1 and AirPort Extreme (802.11g) wireless networking. Like the previously introduced, and subsequently discontinued, PowerBook G4/1.0 17", this model also features an ultracool fiber-optic-based "ambient light sensor" that automatically "measures ambient light and works with integrated software to adjust keyboard illumination and screen brightness based on user preferences". Custom configurations were also available.
Hope this helps!
-alywa