The gays haven't exactly been pleased by Barack Obama since he chose Christian conservative Rick Warren to give the invocation at his inauguration. But Obama's inauguration parade will be the first to have an openly lesbian, gay, bisexual and transgender group -- the Lesbian and Gay Band Association -- marching in the parade proper. And three Houston Pride Band members will make up part of the 177-person marching group.Local Kevin Taylor is excited about marching in the parade. He played a previ