You could save some money by getting a patent agent. A patent agent has passed the patent bar exam and can practice patent prosecution in front of the USPTO except they do not need to be a lawyer.
I work as an examiner and you are suppose to help out the 'pro se' applicant more than one who is represented by counsel, but there is a specific form paragraph for strongly urging the person to get a lawyer or agent. There are so many laws, rules and minutia that you could mess up and lose protection of your patent.
From the MPEP "An examination of this application reveals that applicant is unfamiliar with patent prosecution procedure. While an inventor may prosecute the application, lack of skill in this field usually acts as a liability in affording the maximum protection for the invention disclosed. Applicant is advised to secure the services of a registered patent attorney or agent to prosecute the application, since the value of a patent is largely dependent upon skilled preparation and prosecution. The Office cannot aid in selecting an attorney or agent.
A listing of registered patent attorneys and agents is available on the USPTO Internet web site
http://www.uspto.gov in the Site Index under "Attorney and Agent Roster". Applicants may also obtain a list of registered patent attorneys and agents located in their area by writing to the Mail Stop OED, Director of the U.S. Patent and Trademark Office, P.O. Box 1450, Alexandria, VA 22313-1450."
Another option is get a provisional application. A provisional application cannot turn into a patent. It does not get published either. What is does is allow you to reserve a filing date for up to one year before you have to file an actual application for anything disclosed in the provisional application.
A final option is PCT which is an international application. You cannot get an international patent. The international application simplifies submitting applications to each individual country and gives you (don't quote me on this) 30 months to file a national stage application. There will be a PCT search and initial written report on patentability within that 30 months time, although the US searching authority may be a little behind. Individual countries do not have to honor that report though.
Finally get a patent agent or lawyer.