Check tigerdirect.com for the 4690k. They should still be having a $40 off purchases over $120, $20 instant off with visa checkout and $20 mail in rebate. If so it should bring it down to around $180 after the rebates.
I don't know much about the h105, the h100i is supposed to be pretty decent and they look similar. Although I do think it might be a little overkill. You could get a noctua nh-d14 for quite a bit less and it will probably cool it nearly as good unless you're not fond of big air coolers. It appears the 105 is an updated h100i so it's a good performing cooler if you plan to overclock quite a bit.
For a few dollars more I'd opt for the antec 620 hcg -
http://pcpartpicker.com/part/antec-power-supply-hcg620m
It's made by seasonic and a lot better quality psu than the corsair cx.
Looks like a good build.