Hi, I had the same experience as you with the craigslist (probable) scam trying to rent a room. It sent tons of red flags up for me, but I couldn't figure out how it could be a scam. But with fake checks, now I can see the issue. I appreciate having other people's input.
Thank God I looked up the name Martins Kush and saw your messages! They went on the College of Charleston website and were trying to scam me, too. I was looking for someone to sublet my apt. They were supposed to be sending me a check by overnight delivery! The e-mail addresses were the same ones "rocketmail" and hmadefuniture whatever. I'm glad I kept showing the apt anyway! I didn't believe anyone would rent an apt sight unseen. It smelled.
I have an Allison Kush (also with a rocketmail address) trying to rent my apartment. Thanks for dropping the name, so I could confirm what I though was a hoax.