FSBO's vary, but don't go in without an agent. Dealing with a FSBO is tricky at best and your agent will invariably do twice as much work to get the deal done and keep it together. Sellers typically pay the commissions but as a FSBO it all varies.
You could go at it alone, this isn't rocket science but small errors often lead to big legal bills. Let me know if you need help -
Hank Miller, SRA, ABR
Associate Broker & Certified Appraiser
Prudential GA Realty