BTW, don't forget about GetX from @PaulZiliak
My client loves it to death. It's something severely missing in Sage ERP, saves a ton of time and buys your recurring commissions. We just received our recurrence. We didn't have to ask for it, remind them, beg for it etc like so many vendors do assuming you'll forget about it.
http://www.xkzero.com/ERP_search/