Ccrew's comment bothers me immensely this is one of the main uses I plan on using my old Mac for is editing in HD with FCPX, can anyone absolutely 100% validate whether what he says is true, I'm getting my RAM upgraded to 6GB and I'm getting a Seagate Hybrid Momentus XT drive so I am really investing in a lot of money in something that could or could not work, I need someone to reassure me that it will
Seriously? It's not a comment. It's from Apple's own page. I hate being the bearer of bad news, but I know my way around hardware. Sorry! Here's reference info so you can verify the info and I'm not some random kook raining on your parade:
http://support.apple.com/kb/HT4664
And the machine you bought has the GeForce 8600M GT 128MB card in it.
Download MacTracker off the Appstore, look at The MacBook Pro 15 Inch Late 2007 2.4/2.2 1226 card specs.
GRAPHICS
Graphics Card NVIDIA GeForce 8600M GT
Graphics Memory 128 (2.2 GHz) or 256 (2.4, 2.6 GHz) MB GDDR3
Display Connection 1 - Dual-link DVI (VGA, Composite and S-video with adapter)
Display Modes Dual display extended and video mirroring
External Resolution Up to 2560 by 1600 pixels
Camera Built-in iSight
I've got a dual quad Proc Mac Pro sitting here that won't run FCPX due to video, I know a laptop of the same age sure isn't.
And I probably shouldn't even mention that that machine is of the vintage where the onboard NVidia chip fries due to them being defective.
http://support.apple.com/kb/TS2377