Which Powerbook?

With education discount;

• 1.5GHz PowerPC G4 with 128MB Graphics Memory
• 512MB DDR333 SDRAM - 2x256 SO-DIMMs
• 80GB Ultra ATA drive @ 5400 rpm
• SuperDrive (DVD-R/CD-RW)
• Backlit Keyboard/Mac OS - U.S. English
• AirPort Extreme Card
• 15.2-inch TFT Display

Subtotal $2,389.00

or

• 256MB DDR333 (256MB built-in)
• 80GB Ultra ATA drive @ 5400rpm
• SuperDrive (DVD-R/CD-RW)
• AirPort Extreme Card
• Apple Studio Display (17" flat panel) + Apple DVI-to-ADC Adapter
• Keyboard/Mac OS - U.S. English
• 1.33GHz PowerPC G4
• NVIDIA GeForce FX GO 5200 with 64MB DDR Video Memory
• 12.1-inch TFT Display

Subtotal $2,400.00

If I go with the 12" and the 17" studio display, I could still use the studio display when I upgrade to a 12" G5 PB later on.....but, that 128mb graphic card in the 15" looks very tempting!

Any thoughts?