I use one of the 1154s from www.copperbox.com--$168. Has four inputs and one output. Inputs are component video, coax digital audio, toslink digital audio, SE analog audio, and composite video. It autosenses and you can set priorities when multiple components are on by monkeying with which devices you assign to 1-4, and can override the autosense with a manual button. It works pretty well for me.
The issue I have with buying an expensive switcher, whether included with a pre/pro or not is that I don't want to dump a lot into switching technology when the optimum medium for routing video signals keeps changing--we had RF coax, composite video, S-video, component video (in several incarnations, when you think about separate sync), DVI, DVI/HDCP, IEEE1394 firewire, and now HDMI. I feel like anything I buy is going to be obsolete in a few months.