we use Order Manager and cant live without it . we love their built UPS system . if i were you i would have another look at Order Manger they have come a long way in the past 2 years . What ever you do dont waste your hard earned money on IS i would almost gaurantee that your business would suffer, trust me we learned the hard way . Some of these companies are quick to take your money and promise you the world but in the end your business suffers be cause these companies cant deliver what they promised.