My tendency is to stay out of primaries, and even now I don't want to make an endorsement. But, my take absent any information I'm not aware of is that the DCCC would be making a big mistake not backing Morrison v. DeLay in '06.
I lack perfect information on these things, but my perception is that Morrison would be opposed not because of his lack of skills as a candidate, but because of his lack of deference to the DCCC.