Are these compatible/gaming htpc

hi im trying to build a htpc with gaming specs can you please tell me if components are compatible or help choose alternatives not sure what im doing.
cheers!
zalman hd503 case
2x zalman quiet fans or 1x zalman 120mm quiet fan
quiet coolermaster 700watts 135mm fan
i7 2600k 3.4ghz
scythe shuriken low profile cpu cooler
asus p8z68 motherboard
2×2 or 4×4 kingston hyper x ddr3 ram 1600mhz
nvidia gtx 560ti 1gbor gtx 580
Answer #1
An HTPC is made for playing movies,Not for gaming,You’ll need to build a desktop if anything!
That graphics card will never fit in that case. What’s your budget/country?
Answer #2
Replace the motherboard, cooler (possibly with something like H50), PSU (or trim the cables) and the case with stuff designed for SFF. The rest are alright. You looking at mITX or mATX?
Answer #3
Thank you sow much for guiding me, my budget is £1500-1700.
Answer #4
Do you think the shuttle sx58h7 pro be better casing. And yes the above post was by me. My budget is 1500-1700.