i'm no computer building expert, but it looks fine to me.
adjustments i would make:
1. add an aftermarket cpu cooler if you're going to be overclocking. if you're not overclocking, you could get a cheaper CPU and board, maybe a i5-3450 and H77 or B75 mobo.
2. if you're not planning on changing or adding parts in the future, you could get away with a 500-550W PSU.
3. maybe get an mATX motherboard if you aren't going to use all/most of the pci slots on an ATX. they are a little bit cheaper.
remember, take everything i've said with a grain of salt.