I am makeshifting a SteamBox for now using components I already have: ASRock A55M-HVS AMD Socket FM1 Mainboard (I know it's a bastard now, but I have it already) AMD A6-3600 2.1-2.4GHz Quad Core (just purchased for $25 on eBay, was A4-3300 ) AMD Radeon HD 6670 1GB GDDR5 2x4GB DDR3 1600 120GB Samsung 840 Evo SSD (boot) 2TB 7200RPM HDD Windows 7 Home Premium 64-bit + Steam This will suffice for the time being since most games will be Lego games and some Indie games and Minecraft for my kids. Eventually though I want to go with a more powerful config and was wondering if/what others might have built and any recommendations for best bang for the buck? It will be used primarily for controller based games, and would like to play at 1080p although not necessarily at highest details, and will be using HDMI for my video. Would also like to stick with an HTPC type horizontal case, but fit full height video cards if at all possible, although there are some pretty powerful half-height cards out there right now. I may just stick with my current case is an HEC (7K09BBA30FNRX) with included 300W HEC PSU (hec-300FN-1rx) if there is a decent half-height card out there. The R7 250 looks like a decent choice. I could probably even stick with my RAM, SSD, and HDD, so basically would need a motherboard, CPU, GPU. I'd like to go with something relatively low power and quiet.