Sorry to bump an oldish topic, but I just wanted to post and say thanks for all the advice people gave me regards GPU's. I've had mine installed about a week now, and it's fantastic. It's a Palit nVidia GeForce 8800GT, 512mb, and it's enabled my pc to run shipsim (and for those interested, Crysis!), on full settings. The game looks much better for it, and I'm still surprised by how much detail there is on the Solent. Had a little problem installing it initially due to my pc not uninstalling the old ATI drivers, but it has overall been a very good learning experience pc-wise. Lots of knowledge gained, and my favourite 'lazy' game now looks fantastic.