SCCM PXE and WDS

Last weekend I started setting this up and had a few problems.  As is my way I checked the docs which appear to be non-existant and then the community and finally found one page with some details.  Basically these are the hints you need.  The last two are the ones that caused my troubles.

• As is always the way in SCCM, check the package status before assuming a package is available or removed
• Check the pxesetup log before assuming pxe is (de)installed
• If everything is in one subnet and you can probably leave DHCP options alone
• Start with WDS and PXE uninstalled, then install wds, reboot, install pxe, reboot
• Make sure you have both 32 and 64 bit PE images, even if you will ever use them both
• No matter how much windows tells you off for not configuring WDS, don't configure it