Excellent mate..simply awesome guide there.
May i add some steps for itunes addicts like me who would like to use the wonderful itunes UI with the versatility of foobar.

I recommend u download the multi-plugin for itunes (legal??? ). Using this plugin, u can bypass the audio playback from itunes to the foobar player. You dont actually need to run foobar, itunes will automatically will play it thru the foobars player. So u can experience ASIO and other plugins while using the excellent UI that itunes offers.

use multi-plugin 2.3 with itunes 6.0.4 or greater (and lesser then itunes 7 which is pure cr@p)

i was able to experience the difference immediately

Link for Multi Plugin


mods..pls edit post if this is not confirming with board rules