I've used Form-Auto-Fill (ya gotta do a search to find them). However, I've been having problems getting my excel data to download to my forms, and they only support via email. I did find it useful for my initial boilerplate stuff (the data that's the same on all my submissions), and that saves a little time, but I still have to figure out how to set up my data string so that it'll download correctly into the form.
In the old days, I'd take that as an interesting challenge. Today, however, I'll probably just spring for the $700 program once I get my 90 refund assurances from them. The BPO-Automation people's Refund Policy looks pretty straightforward; the iOpus one is a bit less so. I'm concerned that I'd get a $400 refund from BPO-Auto if it didn't work for me, but still be stick for $200 to iOpus.
Hopefully, it'll fill at least 80% to 90% of my form, in which case I'll be ecstatic to spend the money for their program.