First, what programs will you be using for recording and editing? Strongly dependent GPU and CPU wise for that side.
If you're just doing minor editing and recording I'd stick with just the i5 3570K, if you're doing some heavy editing of the sort then you should go with the i7 3770K.
As for the build, check out my $1100 build here: http://www.squidoo.com/electronicandmore#module14731235...
Gives you everything you need, if you're using Adobe software for editing and recording, go with the GTX 670 instead of the 7970, if not then you can go with the 7970 as it does bench better on average and OCs higher and to better performance.
^BS that is Not the TOP nor is it in any way on the same level the Asus 670 TOP is highly factory overclocked, improved cooler,heavily modified PCB, with an efficient VRM design to produce low temperatures, improved voltage regulation circuitry, better Chil controller , also uses specially binned chip. The non top comes with some of that but it does not use specially binned chip this is what sets them apart example the Top will eat a 7970 for breakfast and it's better then all other 670's.