A heart welcome to SRP, Shauna. He's a lucky man!

Look for something like a 5/8 or 6/8 round point. You can't go wrong with those. I wouldn't get hung up over brand names. Ensure the razor comes shave ready (will be marked as so in the ad). The razors being sold in the classifieds are quality razors. Our members aren't trying to dump junk on other members. They have reputations to keep. Decide how much you want to spend then find one in your price range. Pretty simple, really. You will be getting a good quality razor at a good price. In addition to the razor you will need the following at a minimum:

1. Strop (hanging the best, paddle will work)
2. Shave soap/cream (personal choice)
3. Brush (from under $10 to obscene amounts of money)

You won't need hones at the start, although a pasting strop with some diamond paste or CrO paste isn't a bad idea. But not required.

Also, I highly recommend getting him a copy of Lynn's CD. It's over 3 hours and covers most aspects of the striaght razor. It provides a starting point for those new to straight razors.