I would stop in and drop off a nice copy of your resume. Just say that you were in the area and figured you would drop by a clean copy your resume, just in case the one you sent via e-mail didn't format properly.

Obviously your resume came out fine... but it's a way to start up the conversation and to why you are there.

Otherwise, you really have to walk a fine line between showing interest and seeming too pushy.

Good luck!