well, about not being able to grab, try mastering the one hand hold of the handle.  its tricky, but after a couple seasons, you should get the hang of it (note sarcasm).
also, if you want a good instructional video, get DETENTION. it will tell you all you need to get started.  also check out sites like wakeworld.com for tips.
to all the rest, wakeboarding definitely rocks.  my only problem is that i crave it during the winter, and i crave skiing in the summer.  i just cant be satisfied.
'Don't worry, that shit'll buff right out.' -Darin Shapiro, Wakeboard God