What do you think let me know if you think something is overkill, i want it to be pretty future proof so all i might do in the future is to buy one more graphics card and a SSD drive to load all my frequently used apps
^ while an Antec 900 would probably be sufficient, the Antec 1200 is better and I wouldn't consider it overkill if he is looking to the future. Well that's assuming there will be a fair bit of overclocking involved anyway. I don't know enough about the Titan cooler to have a good opinion of it though and I don't feel like googling it right now .
As for the PSU It's a good choice, unless you may want to consider 3-way crossfire. It's not that the PSU wouldn't handle 3 5870s (unless you run fur-mark and Prime 95 at the same time), but you would have to use adapters to run the third 5870 judging from the arrangement of the cables.
I think you should drop the raptor in favor of an SSD to use as your boot drive, or just get two more 1TB drives and run them in a RAID 5 array. Just a thought .