Replying to the start of this thread, if you have ghost and you're just using it to image a few machines occasionally, then stick with it. Going for another tool will be overkill unless you need additional functionality.
What I would say though is that if you want to extend imaging functionality across your LAN and WAN, then only one tool can give you that as all other imaging tools are designed for use within a Lab environment whatever their marketing blurb tells you. If you have multiple subnets and routed WANS, you will end up dedicating server hardware and configuring multiple systems to host services.
The only tool that doesn't require this is LANDesk Management Suite. It is admittedly a full-blown desktop management suite, but it also includes imaging functionality designed for use across the WAN including automatic multicasting across subnets with no router configuration, PXE boot with no server requirements or router configuration (and central control over boot menus), the ability to automatically customise sysprep files on the fly and provide correct names, add new drivers, manage multi-processor systems, remote boot into DOS (and perform remote DOS commands during the DOS session)and much more.
Best part is that to gain this additional functionality does not mean dropping your existing imaging tool. It can use PowerQuest, Ghost, Altiris and any other imaging tool that supports commandline parameters.
Check out the LANDesk website
I admit that I'm from a reseller, but we have dealt with PowerQuest and Ghost up until now and still will in environments where other tools assist with LANDesk.