Here's my update.
Laura had asked me to let her know if another agent offered rep. Another agent did not offer rep, but rather, asked for revisions via email. I went back and forth on this for a little while, and finally decided to let Laura know that I was planning on revising for the other agent.
Laura responded by telling me she really liked my novel, outlining her own revision request (the details of which, I'm going to get when she sends me a hard copy of my manuscript with notes from her and her freelance editor), and offering to talk on the phone.
So we talked, I sounded like a bit of an idiot, probably, but that's okay. No offer of rep yet, but she wants to talk again, once I get the hard copy and have a chance to read it over.
To be honest, I'm not nearly as excited as I thought I would be. Laura seems fantastic, of course, but from what I've read the majority of revise and resubmit requests don't end in offers of rep. I will try to take my time, and we'll see what comes out of it. Keep rooting for me guys!