Business Faxing Solution

We currently use RightFax 8.5 and are looking at other solutions since it is time to replace the board (an old ISA board).

1. Needs to be network based
2. Would be for approximately 200 users
3. Windows based

I have looked at RightFax 9.3 and GFI Faxmaker 14. Does anyone else have other solutions and how are they working for you?