I wear Nike SP6 II. Have three pair and love them. By far the most comfortable shoe I have worn. You can find them for 50 or so on eBay
here is what they look like.
http://www.nike.com/index.jhtml?l=ni...894/pid-120320
Here is a action for a pair.
http://cgi.ebay.com/NEW-NIKE-SPORT-P...QQcmdZViewItem
If you watch for them you can find them cheaper. You won't be disappointed. Trust me. I put a ton of rounds in a week.