I'm planning on buying a midi controller at guitar center since I can't find a cheap synthesizer. I found 3 midi controllers that seem pretty cool. The akai synth station 25(iPod), akai lpk25, and behringer uma 25. I am leaning towards the behringer but I still don't know if it's good. Or i might get the lpk25 and buy something to add on.The synth station is $99, lpk25 is $69, and behringer is $129 . Any ideas on what I should do would be helpful. The max amount of money is $129