If you can wait, Segelei is bringing a lot of nice looking mechanicals out soon. Most of them are clones of the high end mods, I have my eye on #19 and #20.
I have a K-100 (Empire Clone) which is great and cheap, I think I paid $35 from Hoosiervape.com. If your willing to shell out $100 for a mech, I'd suggest saving up a little more and get a Gus mod. They are the same as a GP Paps, other than cosmetics. The parts on them are interchangeable. Gus mods run $120 at Vaprev.com
Depending on how much your willing to spend, just check out the youtube reviews on the product before you make your purchase.