Yeah I'd like to just spend around 100 for the marker. I've read good things about the Kaos, I'll plan to get it after playing with the other equipment. thank you!
For $30 more you could get a Gog eNMEy which will shoot much smoother and quieter than anything else in the price range.
More important than your marker however is your mask. This is what you should really splurge on. The JT Proflex has been a popular choice for years, and is $60, but some people feel the ear protection is not enough. The V-force profilers and Proto Axis are also great options as well but are a little more spendy. Trust me though, you will be glad you spent the money on a good mask, rather than using a cheap one and ending up buying an expensive one later after your mask fogs and is uncomfortable, ruining a day of paintball.
Good luck, and welcome to TechPB!