Does anyhow here use any data integration software? I have tried pervasive, is there anything out there that you all have used that you would recommend? Oh, I'll be converting other database, excel files, and text files into SQL.

Perhaps you can tell us a lot more about what you are doing with what you have, and why the very good Pervasive didn't work for you. Just off the top of my head I can think of Boemi, Data Mirror, Informatica, Netrics, SAS, Sunopsis, Trillium...
You need the job and the task, then the tool is easier.

Well what we are doing is converting our customer management program databases. The majority of them are in a .mdb format because we have only been converting our major competitors DB. But here pretty soon we are going to be converting or trying to convert anything throw at us.
Lately I have been getting a lot of excel files that have been exported from QuickBooks. I can covert those but I just make some formatting changes then paste everything into a mbd file that is in the same format as our competitors because we have a utility that will import their db into ours. However it’s only designed to import their database into ours.

What I like about pervasive is that I can create a map for the excel file and dump it right into our database. What I can see that will be a problem is for example, in the excel spread sheet. It will list the customer info 4 times if they have 4 different vehicles. I don’t want enter customers name listed 4 times in the database. I want one customer name in the customer table and the vehicles associated to that customer. That is going to my challenge that I haven’t sat down and attempted to tackle yet.
I hope this gives you a rough idea of what I will be doing.

ODBC file mappings is usually the bridge used here.

Export user data (from some system)-->ASCII flat file
map it using ODBC into your dbms
and then import the file.

As you can save/name the ODBC mappings, you create the map once
per Export Source and just reuse it whenever necessary

The Question to be resolved is How does your system Import Data?

edit: see this

That does work in house however, my customers aren’t in house they are spread across the U.S. I don't want to walk someone through creating a obdc bridge. Our program right now covert everything into xml then appends the SQL database.

That's a great solution, if the data can be
emailed / ftp to your host.

edit:

terminology can be important; one INSERTs or UPDATEs to an SQL DB, not appends