Yeah, I've been using cex.io for a couple of months now, and had no problems. They've just implemented LTC/BTC trading very recently as well, which is a big plus for them. I expect they'll incorporate ltc mining once the dedicated scrypt miners are out.

I heard back from support at Hashcloudy pretty quickly, who said I should be receiving payments for my litecoin mining contract about Wednesday this week. If I don't receive anything I'll chase it up, and either way will report back here.