I was staying at Tawana ramada, a few steps away from Patpong and very friendly staff. Dunno if it was a 3 or 4 star hotel but either way the room were pretty good, not the best. But the location of the hotel and the staff was GREAT. *Best breakfast i ever had*
*edit* just saw your budget, why 65$ a night on a hotel room? your not gonna spend so much time in it are you? If you're on a budget for the vacation save some of it for the fun stuff.
http://www.bangkok.com/tawana-ramada/ (48$ a day according to this site, but i remember it being cheaper) and im sure there is better choices aswell.