NISMOGirl,
Hmm, not good.
Try the cheapest first. Drain the gearbox oil and put in some good stuff. VMX80 is pretty good, or if you want to go right out get the RedLine stuff. I think the VMX80 stuff will set you back about $30, while the RedLine is about $80-100. You'll need about 3.8lt.
I had problems with second gear, and the VMX80 fixed it up
If the clutch isn't disengaging (spelling) enough, it will cause crunches into gears, but usually all/most gears.
I'd drain and replace the oil first, then if that don't work get the clutch looked at/replaced and see how you go after that.
Good luck
J