Deployment Solution for Dell Servers does it's magic through what's called the Dell OpenManage Toolkit. Basically a set of utilities to configure hardware. If you're looking for similar functionality for desktops, I don't know of a solution that has been built specifically for that purpose. However if you know how to create custom run script tasks through DS you can easily code up some small scripts to do some Dell desktop hardware configuration.
Here's some Dell specific configuration tools:
http://linux.dell.com/libsmbios/main/cmdlinetools.html
Also, I should also mention that the scripted OS deployment jobs included in Deployment Solution for Dell Servers should work just fine with desktops, it's just the hardware configuration portions that you wouldn't be able to use.
Good luck,