about myself, I left playing on Psever they are shit wholes now I play on retail, as far as the good Pservers are concerned I used to play on Magic-WoW.com they are with good population of 3.8k to 4k ppl and I am the GM of biggest and best Horde guild with the name " Furor" ppl know me with the name Shocker & Danmed there, if you plan to go there and play leme know, you can see our guild website too " furor.guildportal.com"
As of TBC seriously man its fun if you are playing without bugs and devs are constantly updating the change log but on otherhand its really hard to get geared in it as far as the WOTLK is concerned, faction like Wyermest Accord / Ebon blade etc etc gives you nice and decent gears to get in dungeons than you can easily farm some dungeon for better gears and finally to the instances like Naxx / Ulduar / ToC.
rest ask me any thing if I be able to help ya I will be glad...
PS : dont waste time playing Pservers