Fleet Management Software

Hey everyone!
I'm currently in the market for some Fleet Management software. I'm looking for an All-in-one suite that would let me handle dispatch,ar/ap,load tracking, and all other back office function or a viable combination of software that would have little to no redundancy.

Current fleet is 2 trucks but will expand to 5. I'm really enjoying Rigbooks but I also want to know what other options are out there. Google search nets a lot of choices but they won't disclose pricing without either signing up or watching a demo via webex.

What is everyone using in their day to day business and what makes it cost effective versus another standard (what keeps you using it versus anything else)?