I had (still have in the garage) an 03' TTR-225. It is a very dependable bike and a lot of fun for a beginner. Got to love that electric start, particularly when learning and crashing a lot. I outgrew it in about 6 months even though I hadn't riden in about 20 years. Still use it when friends or family want to go riding with me.
I now have a 95' KDX 200 and absolutly love it. It too has been very dependable and starts always starts on just a few kicks.
Couple of weeks ago I had no problem keeping up with a bunch of experienced riders on their 250 motorcross bikes on my KDX.
Some will to tell you to not listen to us KDX'ers, we tend to be rather bias. But there is a large KDX following, must mean something...