Hey, ive posted here before and you guys were a great help in my macbook vs mbp debacle. well im buying a refurb macbook pro and i was wondering which one is better? does the proc speed jump improve performance that much? Refurbished MacBook Pro 2.33GHz Intel Core 2 Duo 15.4-inch glossy widescreen display 2GB memory 120GB hard drive 6x SuperDrive (DVD+R DL/DVD±RW/CD-RW) ATI Mobility Radeon X1600 with 256MB of GDDR3 memory Built-in iSight camera Refurbished MacBook Pro 2.4GHz Intel Core 2 Duo 15.4-inch widescreen display 2GB memory 160GB hard drive 8x SuperDrive (DVD±R DL/DVD±RW/CD-RW) NVIDIA GeForce 8600M GT with 256MB of GDDR3 memory Built-in iSight Camera my main concern is the graphics card difference. I do plan to use windows sometimes on my mac for work (CAD/CAM stuff). Is there a big difference in graphic card capabilites/specifications? Not sure where i got this info but remember reading the hdd is nonuser changeable. Will i be able to buy a big hdd for the macbook pro to upgrade? If so what is the maximum hdd size i can put in? Thanks in advance for all your guys help!