Go for it! If you don't hear from him by tomorrow evening, send him a quick email to let him know that you had a good time. He will appreciate knowing where you stand.
Best of luck!

thanks, WISYS!
he ended up contacting me later in the evening and we spent a couple hours chatting. already have plans for dinner and a movie this week.
of course, now i am wondering if we are moving too fast or if he is only interested in bedroom activities, blah blah/insert other common concerns here - i guess it is just the inner monologue of a woman in her late 20s who hasn't been dating for a while. and i guess i should just relax and go with the flow. i have decided to consciously stall any physical stuff so there is time for me to figure out whether the chemistry is more than lust.
thank you for the encouragement!
and thanks to everyone here who takes the time to provide feedback to others,
rei