HD cloning software

The original HD in my iMac G5 running Leopard is getting very full. I want to replace it with a Seagate 3.5 1T drive. The documentation for the Seagate said it came complete with a software program called Disk Wizard that would clone the HD and make replacement a snap. The fine print, however, says DW is not Mac compatible. Can anyone suggest a suitable software program which i can use to clone my old drive?

I use Time Machine on an external drive but I'm not sure it has everything I need.

 

I think Time Machine has everything except my pix files which I store on a separate external HD. I'm not sure, though, where some things like Gmail and Yahoo are kept so I could copy them to a CD just in case.

Would the procedure go like this: remove old HD, replace it, format the new drive, then open Time Machine and have it restore "Mackintosh HD."

Can it be as simple as that?

Apologies for sounding dense but I'm a converted PC user and I/m more accustomed to Gates' detailed procedures.

 

Dang! I knew it sounded too good to be true. But it isn't as if CCC is an expensive program.

Many thanks

 

Can't beat free. Tried it and it seemed to perform well by backing up my HD to an external. Test will come when I try to reverse the process and put data from my old HD onto the new one.

FMI, what's the best way to delete the data from my external? Just format the disc?