Here you go.PCPartPicker part list
/ Price breakdown by merchant
/ BenchmarksCPU: Intel Core i5-3450 3.1GHz Quad-Core Processor
(€174.90 @ Amazon France) Motherboard: ASRock H77 Pro4/MVP ATX LGA1155 Motherboard
(€89.89 @ Amazon France) Memory: Corsair Vengeance 8GB (2 x 4GB) DDR3-1600 Memory
(€37.21 @ Amazon France) Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive
(€77.99 @ Amazon France) Storage: Samsung 830 Series 128GB 2.5" Solid State Disk
(€93.78 @ Amazon France) Video Card: Gigabyte Radeon HD 7950 3GB Video Card
(€283.66 @ Amazon France) Case: Zalman Z9 Plus ATX Mid Tower Case
(€66.80 @ Amazon France) Power Supply: SeaSonic 520W 80 PLUS Bronze Certified ATX12V / EPS12V Power Supply
(€96.80 @ Amazon France) Total:
€921.03(Prices include shipping, taxes, and discounts when available.)(Generated by PCPartPicker 2012-11-11 13:32 CET+0100)
You can drop the SSD if you need to stay below €900.
There's no point in a 3570K if you're not gonna OC, the 3450 is just the same minus a few negligible GHz.
I put in a 7950 because it's a better buy for the money as it outperforms the 660 Ti in almost every way at the same price point.
I didn't put an optical drive because I pcpartpicker won't list any that's not Blu-ray. Just grab the cheapest you can find, they're practically the same.