Yes the quadro is the reason why my friends recommend that laptop.
I didn't read the ram on that laptop, 512mb is defenitely too little for maya.
The laptops my friends use are 2GB.
The problem with maya on a laptop is mainly the display.
Maya is a heavy opengl user and the normal laptop video cards are not up to the task.
You need something with about a 7600GT+ card with atleast 256MB dedicated video memory to run maya well on a laptop.
I went through the dell site and did a notebook if I were buying one for maya/3d on the lowest budget I could.
Came out at 1787.00
PROCESSOR Intel® Core? 2 Duo T7100 (1.80GHz) 2M L2 Cache, 800Mhz Dual Core
OPERATING SYSTEM Genuine Windows® XP Professional, SP2 with Media
VIDEO CARD NVIDIA Quadro FX 360M, 512MB Turbo Cache memory (256 dedicated)
LCD PANEL 15.4 IN WIDE WUXGA+ Anti-Glare LCD Panel
MEMORY 2.0GB, DDR2-667MHz SDRAM, 2 DIMMS
HARD DRIVE 80GB Hard Drive, 9.5MM, 7200RPM
OPTICAL DRIVE 8X DVD+/-RW w/Roxio Creator?/Cyberlink PDVD?
WIRELESS CARD Dell Wireless? 1390 802.11g Mini Card
FINGERPRINT READER OPTION Standard Touchpad
SYSTEM DOCUMENTATION Resource CD - Contains Diagnostics and Drivers for Windows XP
My Accessories
BATTERY OPTIONS 9 Cell Primary Battery
A/C ADAPTER 90W A/C Adapter, Energy Star Compliant
KEYBOARD Internal English Keyboard