Just had a go on Virgin Gaming for the first time on FIFA 12.
They have a new tournament system where you can buy-in any round you want and if you win you not only take the winnings for the round you won but you are also entered into the following round for free. You can choose your opponent in each round and play when ever you want.
I bought into round 3 for $4. I won my match so won $7. In round 4 I won again and took $14 dollars. Just now in round 5 I won again and took $28 dollars. By my calculations that puts me $45 up by winning three games of FIFA. I've made some decent pub money and I'm not even finished yet. My next game is for $56 and the final round after that is for $100.
The tournament I'm in is for low level players or new players who haven't played enough to be ranked yet. There is another tournament for higher ranked players where the final jackpot isn't $100 - I'm pretty sure it's $3000. Obviously that has bigger buy-in and the standard will be on another level. I think there's some serious money to be made, though - there's lads on there who aren't even any good who claim to have about $2000 in their accounts.
Would recommend this massively to anyone good on FIFA who wants to make a few quid. If you really want to you can buy into the Virgin Gaming Cup (Xbox 360) Level 6 for $32 and play me in my next game.
My first two games were pretty standard wins but the third guy I played was solid. I'd like an easier game next so don't rush to play me if you're a world beater.