I thought mine was the GU typhoon 20" but then I got one with all the new Echo parts on and I wasn't impressed. I have a Echo Team now with an o..k spec and it feels a lot nicer to ride. But i wouldn't mind a KOXX Levelboss.
You can go for the usual disk brakes such as: BB7 (very good), Louise and so on ..... But my mate just got a bikehut disk, Yes a bikehut disk and it is really good. I think its just how u set them up
I strongly recommend Echo Lite forks. Loads of my mates have them and I am planning to purchase some in the not to distant future. They are very light and fairly strong and very cheap for what you get.