new xcw 300

I wrap electrical tape around mine to prevent it from coming out. Works great and if I ever need a piece of tape to repair my wiring I have one handy.

I would think about a pipe guard and hand protection like bark busters, those two items are a must have for trail riding.

I have my throttle cable safety wired at both ends right now but will be getting one of these soon. You can get them stock length or longer depending on how you route it.

http://www.motionpro.com/motorcycle/partno/10-3001/

Another popular mod is the suzuki needles. (NECJ) It really cleans up the low end and gives a nice smooth pull through the rpm range. There are endless threads on KTMtalk about them. The stock needles are pretty good with minor clip adjustments any more but this gives you some options if you are not happy with the stock power delivery.