Well both answers DO have their validity.
1. Yep, imaging is quick but its limitation is not only HW but also the SID's. Fortunately there are ways around that. For NT and W2K it's Microsoft SysPrep, and for NT also the SID changers of Ghost et.al.can do the job.
2. Automated install of Windows is nice, but automated install of apps can be more painful if you don't have software distribution in place. E.g. for some there is no responsefile mechanism and snapshotting (SysDiff) is the only way. For both jobs, Windows 2000 RIS and RIP can be nice tools (but unfortunately not for NT Workstation...)
Both solutions are, with the limitations given, nice for basic machine rollout. However maintenance AFTERWARDS, e.g. adding another application, is the challenge. For this I'd recommend a distrib tool. Like Veritas WinInstall, Novell ZENWorks and Microsoft SMS. ZEN and SMS are much 'broader' (also have remote control, license control, inventory etc.) but at a price of course. And ZEN also offers the initial rollout of Windows (responsefile), even with Ghost-like multicasting.
Hope this helps,
- The Netherlands