Let's take your fantasy as true and then follow that with who should replace Bush in 2004 barring his being impeached by all of these disaffected conservatives.
6 months, even a year ago, there were those of us highly critical of the direction Bush was heading, but grassroot Bushbots told us we were evil, and the national GOP leadership was behind everything he did. But now, the cracks in the wall are beginning to show. You can choose to believe I am just Joe Sourpuss, but there are getting to be too many cracks, including on a national level, to ignore.
How much farther left can he go? Bush doesn't care if House goes to Dems, he'll just sign whatever they send him.