Also: Be prepared for swings. The only way you can handle this and continue to play poker is to stay w/in your bankroll. Adhere to bankroll starting requirements, and you should be fine if you play solid tight poker (at these levels).
Last night I "tried out" a higher game, out of my online bankroll, and I lost a buy in. As you could imagine, I was cursing myself for not listening to my own advice.
Such is life. GL.