You might want to take a look at Central Management Servers. It's a way to control & report back on multiple servers from a single location. Here's the BOL entry: http://msdn.microsoft.com/en-us/library/bb895144.aspx

I wrote an article about this over on Simple-Talk[/url].

If all this is too much work, my company, Red Gate Software, does sell a backup management tool, SQL Backup[/url]. Not only does it manage all your backups from a central point, but you get automated testing, compression (better than Native) and a bunch of other utilities built in. There's a free eval period.