Depends on your resolution. Most games will run flawlessly at 1080p without any hickups at all. Bad console ports will still be bad, and poorly implemented "over the top" effects will still bring it to it's knees. Crysis 2 "let's tesselate everything" makes my 7970 1.1GHz completely cringe at 1440p.
- Adding more RAM is stupid and would do absolutely nothing.
- Dropping down to a 3570k would do nothing performance wise and save you a bit of cash.
- Never heard of Apevia; I'd personally stay away.
- I wouldn't get an A-DATA SSD epersonally, but they are fairly good I've heard. The Samsung 830 is incredible for the price though.