I use Macrium Reflect and at only 20 quid it is a steal. Very easy to use. I find it more flexible than the Windows 7 backup in many respects - for example I can set up several backup jobs for different folders/partitions and deal with them separately - rather than all collectively as in Windows Backup.
There is a free 30 day trial. Worth a look if Clonezilla is not to your liking.