i would say engagement ring, but it was almost 4 years ago that i bought that.  oh yeah, if i do say engagement ring, my gf will kill me.
search around online.  there's places that take those engines and replace most of the internals.  the engines in the cheap ones have a tendency to seize pre-maturely.  if you get it worked on a bit, it'll handle a LOT of abuse and will also kick out some more power.  it'll probably cost you a few hundred, but it's worth it.