if you know omaha at all, it is the best way to clear bonuses at lower limits. It is a more fun game to me also. I lover omaha hi.low. THe pots are much bigger since there is split pots. SO even at a level like .50/1, you will get at least .50 rake which at many poker rooms is enought to count as a raked hand.
I would suggest though for your first poker room to be paradise poker, absolute poker, or royal vegas poker.
Paradise poker, and royal vegas poker are very easy to clear because the rake only has to be .25 or higher to count as a raked hand. SO the pot has to be 5.00 or more. At a .5/1 limit table you will get this on 80% of hands. at 1/2 limit you will get this about 95% of the hands. So basically even low limit players can clear bonuses here fast.
Also, I would go through poker savvy on these, not only will you be able to whore the bonuse from the poker room, but you can get free money from savvy.
Paradise Poker| Get up to $100 in Free Gifts When you Join | PokerSavvy. CLick on this link and it will take you to the paradise poker page. ON this page it talks in depth about the poker room. Also, you will get enough points for 45.00 through savvy. Make sure when you sign up you pur that the Toeforum referred you and you get an extra 100 savvy points.
The bonus here is 25% to 50.00. And for every 100 hands you are dealt cards, and the rake is .25 or more, you get 10.00 of your bonus money transfered to your real money account. I know every time I have played there too I have deposited 400 to start and I got 100.00 bonus but I dont know if that still works or not. It used to always say 50 max but me and others have always got the 100.00. If you have any more questions or need any help ask. It is no problem.
Also if you want help with omaha, let me know. It is my favorite game.