A combination of circumstances, attitudes on display, and personal experience compels me to offer this warning.
Expect widespread voter fraud in favor of the Democratic candidate for Congress, and expect the GOP to not only look the other way, but to obstruct any oversight, whether it be by Conservative Party leaders who have a candidate in this race (Doug Hoffman) or independents who wish to see some breaks in the lock the Democratic/Republican Parties have on everything from the electoral process to governing itself, or even lay Republicans dissatisfied with all leadership in DC.
I don't have a foolproof solution for you watchdogs. The best advice I can offer is to be very certain who you trust, and to watch your backs in any event. If your candidate is a good one, and you do the right things, at least you will feel Him by your side when push comes to shove.