A quality strap is really important. Everyone's heard horror stories about poor guitar straps giving out mid gig and sending a guitar to the repair shop. A solid leather strap is the best way to hold your guitar and look good doing it.
Levy's make some of the best straps available. The MSS1, part of the 2½" Signature Series, leather guitar strap comes with foam padding for greater comfort and better grip on stage. Adjustable from 38" to 53" you can wear your guitar at the height thats right for you.