2-3KH/s? My Droid Evo4G does better than that. You'll be wasting money on power bills and will get no where with any crypto. Maybe a typo? Maybe Im reading it wrong? 2000-3000KH/s? Quite impressive. Im running scrypt at 500KH/s and sha-256 at 2.5GH/s. If you are looking to rent rigs, you'll be better off using cex.io
2-3k
Khs, which is 2-3 mhs in conversion. That's not really that impressive either, considering I've seen rig setups pushing over 10mhs. And mining SHA-256 coins at 2.5 ghs? That's wasting time and money, more so than what I'm looking in to.