A Beta Flava
Microsoft has some betas they released not too long ago if you like free software and fixing computer after you break them by trying beta software. Actually, from what I've tried, they're not too buggy...
Windows Media Player 11
Expression Graphic Designer
Expression Interactive Designer
Expression Web Designer
Office 2007 Beta
Windows Media Player 11
Expression Graphic Designer
Expression Interactive Designer
Expression Web Designer
Office 2007 Beta