Yahoo Mail + Messenger both r good
I also use gmail & gtalk
their a big prob in gtalk for online frnds their r 2 option
1) most common or 2) all
in 1st only common frnds appears online and lots of time i miss and cant see many of my online frnds even if they r online
2) in 2nd the list goes too long that i need 2 scroll which is also irritating
instead in Yahoo just press show only online friends and it works fantastically
easy of Use
gtalk dosent hav Video Chat instead u need to login from Gmail that too s**ks
and in Yahoo Messenger it runs very fine
So Overall Yahooooooooooooooo !