Trying to figure out and decide Erevo options and upgrades

[NoControl]

Hey all, new to the RCM Forums.

All the info and faqs and such are a great help.

I just recently got my Erevo (standard edition) monday, 2 venom 3000maH NiMH mon, and Hyperion 610 duo tue, and Novaks Sentry pro last week also got some trinity tritanite speed gems without doing much research on trinity, but I'll still try them. I plan on going BL in the very near future but I'm a bit uncertain and undecided on a few things so I was kinda wondering if some of you well informed folks could help me out.

Plan on getting a MMM 2200 only because 2650 seems to have a little less power ( I could be mistaken), 2 3s 5000maH zippys since the price seems good and you guys think pretty well of them, now for the undecided part, I realize that the stock erevo tx will be useless when I go BL due to the RFI, noticed most of you guys say to either go with Futaba or spectrum, I'm leaning more towards Futaba, but my main question is, is there a difference between the 27MHz, 72MHz, or the 2.4GHz 3pk, or is it just the tx module?

Thanks for any and all help\opinions.