If you post some screenshots of what you have, I'm sure someone can point you to something that is pretty close and wont require a major design/development issue.
You can migrate the Bento-DB to FileMaker using the migration-tool from http://info.filemaker.com/FMP_overview.html (scroll to the bottom of the webpage). The DB looks very similar to the Bento-thing - check the manual for information of what will be migrated ans what not..
Ok that makes sense lol. Here is what my current set up throught Bento. I think it's pretty basic lol
Here's a screen shot of a collection in table view
Actually I did use the migration tool. I guess part of my issue is the look is a little different. Which I should have expected. So I need to decide if I want to go with the new look or not. Here is what a collection looks like in FM Pro. Plus I'm not familar with how to use FM Pro too much as of yet. For example. The denomination field in FM Pro screen shot does not display all of the words but in Bento it does as one line. It's not wrapping the text. I'm sure it's just a matter of learning how to use FM Pro. I'll have to spend some time with the trial version and see.
Watch this filemaker beginner tutorial to learn more about how you can create and modify things in filemaker.
You could also try to change your layout theme to see if there isn't one that you might like better.
First go in layout mode and then go to the layout menu and choose "Change Theme".
Your database looks really simple, just a single table.
So shouldn't be to hard to change things in there.