Whats a good app to auto backup certain files/folders on portable HDD (Conceptronic 320GB USB)

[qanda]This thread is about the Verbatim Verbatim SmartDisk Portable Hard Drive - hard drive - 320 GB - Hi-Speed USB. Click here to see full specs[/qanda]Hi,

i have the above mentioned Portable HDD (Conceptronic 320GB USB) , and it had nero backitup 2 on it to help back up certain files or folders of mine . but that program is crap and it stuffed up my nero burning app . so i deleted it . now i am after another app to try . all i need it for is to back up my files in there folders . i want something basic if there is anything out there .

can any1 suggest another application for automaticly backing up files/folders to the portable HDD and perhaps updating them by the click of a button .

I use Acronis simply because someone gave it to me, but here are a couple of links to some freeware you might want to checkout.