Interested Electric Newbie...

[HummerMan]

Ok, I've been in the hobby for about 6 years now... The only electric that I own is a stock Traxxas Rustler, which hasn't been ran for sometime. I have a Traxxas Revo that is powered by an RB Concepts C6BB MSC .21. So I am looking for power, and speed. An Ofna Hyper 7 PBS 1/8 Buggy powered by an RB Concepts S7 II .21. Traxxas T-Maxx, Nitro 4-Tec and Thunder Tiger Raptor 30 V2 Nitro Helicopter. I am looking for my next r/c to build/purchase and I am really contemplating an electric Revo. But I have no clue where to begin with this one... I am wanting a good setup that will keep me impressed with its speeds. But I don't want to break the bank nor have low run times. What would be a better way for me to go. Brushless or Brushed? Then batteries Nimhs, or Li-Pos? Chargers... Like I said, I am lost when it comes to electrics. Where do I start.