I'm building a system to play the latest games at max settings at 1920x1080 and get as close to 30 FPS as possible within the budget.
The trouble is that the website I'm buying from is in Romanian, so using it depends on how patient you are with a few translations.
Location: Romania, Bucharest
Site of choice: dc-shop.ro ("Componente & Monitoare" from the homepage) / EDIT: Also using emag.ro (top-left "Oferta Produse" -> "PC, Periferice & Software")
Price limit: 700 RON
Color: Black/Dark grey
Design: Simple, no LEDs, no side panels
Internal: Should fit the largest GPU (newest models) & as screwless as possible
Cooling: Air cooled, min 2 front fans & 1 back fan as large as possible