The H70 is very good, but expensive too.
Here are some options:
1- Hyper 212+, the best under $30.
2- Titan Fenrir
3- Megahalems Rev. B
4- CM V6GT
5- NH-D14 (Excellent cooler, more cheap that H70 with the same performance)
6- Silver Arrow (Excellent too, but more big that NH-D14)