Shameless plug...
If anyone is looking to refinance to a lower rate, with next to no closing costs (if you qualify) or shorten your term or pull cash out...let me know. PM or call 614-327-8085. I have helped a few people out on the board already.
To answer a few questions: Yes, some lenders charge a pre-payment penalty. I do not.
Some lenders will allow you to set up the bi-monthly payment...others will not. You need to call your current lender and ask. Most that I have dealt with will not as it is a hassle for their processing department and they lose money.
If you have any other general mortgage questions or want me to look into your scenario, just ask.
-Marc