One thing I suggest is rollover images for the links on your little splash page. Maybe make the little pipe under the text become some color - blue, perhaps, to match your site.
Also, in your main UBB page, make the big table up top (with the microphone in it) the same width as the main UBB table. Two tables with different widths in the same page is really distracting, at least to me anyway.
Those are just my opinions, take them or leave them.
---Skorpion