Hey, tbh id buy a single video card, crossfire is not always good( can cause heat issues, draws more power and not many games benefit from it) and 7770 aint a powerfull card. with 300$ you can get something like a r9 290/280x or gtx 770 from nvidia (or if you can add like 50$ u can get the new gtx 970, great card for the money) all cards are way better than your crossfire. SSD is a nice thing to have for OS and games, they will load rly fast, everything that will be on the ssd will load extremly fast, i recommend the samsung 840 evo 120gb, smooth, great speed and great quality build, you could probly wait for blackfriday and buy something like a 280x + a ssd with 300$, rest of your setup looks solid, the cpu will last you for a while, no worries theres