The idea is to factory-reset the WRT54GL, and then just set it up as a straightforward DHCP router,
By that, do you mean reflash the router with the standard Linksys firmware, so it is no longer DD-WRT?
tanstaafl.
I had kinda imagined leaving DDWRT on it. But now that you mention it, it would be much better to reflash it. With Tomato, though, not the factory gunk.
I only had DDWRT on it for the "repeater" capability, which is missing from the GUI on Tomato.