Recently, I've been trying an new Custom Rom and believe me its awesome its called MIUI Rom..
Its from a Chinese Developer.. But you'll love it..
Its Very much like the Iphone ios but better :). I personally love it .. Especially love the Lock screens..
Check it out who know you might love it too.
(Another rom I like is cyanogenmod 7)
For now check out the Latest versoin of MIUI rom 1.7.22 its updated every friday