The TR only comes with manual whereas the Regular can come with an Auto, sunroof, leather, spoiler, all the options essentially... I think they offer them all in 1 package. I thought the TR was only about $500 less on the MSRP.
I am lookin at new subbys too.... my MSP is pretty much sold. I like the 2005 Legacy GT but might be out of range. It has the STi engine in it from what I have heard, and the 6 speed tranny. Need to verify that.
Get AccessPort for the 06 WRX and let me know what the difference is like!