If there's one thing I've learnt from talking to the guys and gals that are already playing online poker for a living, it's that rakeback should be a big part of your consideration when selecting a 'home' for all your dosh.
Up until now the only addition to my actual winnings have been fabulous 'loyalty points'. You might not be surprised to hear that so far I nearly have enough points to buy 1/9th of a shite baseball cap. Yehaw.
I decided to contact all the big sites, essentially just saying that I plan to start playing seriously, and asking why I should give them my rake. I guess it's not too surprising to find that the big boys didn't want to offer me anything; suggesting that just being allowed to play on Poker Stars should be enough to make me happy. Others suggested I contact them after a month of playing "as i mean to go on" so that they can appraise my play. Yeah, and get a month's worth of dosh for free. Do I look like Johnny Bananas.
Ultimately I found a bunch of guys that broker rakeback deals. Just to name-check the guys that have been most helpful: www.fishypoker.com and www.rakebackdeals.co.uk
So... after much deliberation, I'm down to Littlewoods or William Hill. I think.