Alright, while we're critiquing and I do this web design stuff a little...good looking site overall. I like the color scheme. It's actually a dark gray as opposed to black. Maybe you could go a few shades lighter. I've always thought blk/gry/wht gives a site a nice, clean look. And I really like the bits of red in there to add clolor. Maybe even use some more red. And every baseball site you see is blue or green. Be different.
I agree the top frame takes up too much of the page. Just resize the image or flatten it out a little and it should be fine. Also put a little bit of a border (even an "invisible" one) around it so it doesn't look like the text is scrolling right into the image.
The splash page- personally I'm not a big fan of splash pages, especially if I'm having to surf on a dial-up connection, just wasted time. If you're really married to it, at least put "enter" or "enter site" text with the image. Some folks aren't quite sure what to do when they get there even if they mouse over it see the cursor change.
Overall, real good work, these are just a few minor changes that I personally would make.