Why buy superseded hardware like the E 8500 or the X48 DQ6?
Consider an i5-750 and the great MSI P55 board on special package at NEWEGG.
This way you will be completely up to date and you can o/clock faster than the E8500 speed.
You will of course need suitable RAM.GSkill is good
Your choice of PSU is a bit downmarket-prefer Corsair,Antec.
Great HDDs ,but instead of IxItb,buy twox640gb.,the second for your backup archives and videos,data etc .

See HERE re overclocking the i5 with the MSI board.

CPU,Mobo and PSU excellent!

Video card a bit basic-check out this review of all HERE.
Probably OK for non gaming-but a bit more money will buy something better,probably the Radeon HD 4850

Memory great but cheaper good quality reviewed HERE

Case a matter of taste-probably more looks than substance-a conventional case, hopefully with adequate cooling and reasonable noise level.
Have a look at the Thermaltake v9 instead, HERE

Re HD good idea,as well as the 1tb-get a small W.D. for the OS-keep the OS partition small for better performance

You will need a better CPU fan if you are going to overclock -this Xigmatek is great HERE but check whether it will fit the mobo.

Good luck!

P.S.: I love yellow, that's why I pick that yellow case! It's a little bit off, not exactly the yellow I like to have but it's good enough for me! :)