Go with watashi, always err on the side of polite. ~grins~ I figure if I'm always extra extra polite with my forehead on the ground I might be forgiven for my hideous command (or lack thereof) of the language.

And boku is used by men, or more specifically boys. It's informal.

Watashi wa konwaku shiteiru... desu. I think. ^^ Or to be more specific, watashi no ongaku wa de ki ga chhiru desu. But I won't bet you a two faced penny the arrangement of that is correct. ^^;; Ah but I can say, kyou no tenki wa kumori desu. *coughs* Yeah, that's about seventy five percent of my ability...