ok ... my review ...
Its slightly ouch ... but I don't think it'd take that much to tidy it up ... some image padding / margins .. would do wonders ...
remove the joomla favicon as well .. I HATE the joomla favicon .. (not sorry for the caps

)
I'd also recommend that you don't hotlink images in your css (sorry thats a complete no no)
Code:
background: url(http://openid.net/login-bg.gif) no-repeat;
that said maybe I'm missing something to do with the openid.net on the site ...
personally I really don't like Joomla these days ... after spending too much time f'ing around with it .. I found a lot of very basic things were missing from it ... but ah well

(I've posted about that before and as was said there are some great plugins ... which I can't argue with)
companyhotseat@gmail ??? erm ... could I recommend google apps ? change you mx records if you're set on using gmail for it ...
Your logo / header image ... hmm... seeing that I would leave the site almost immediately ... head over to 99 designs .. and you could get something half way decent maybe for 50 - 100 quid ... if you're stuck for cash ...
Just a few thoughts on it .. take from them what you will ... I didn't delve any further into the site ... I'm on the beer ... second last day in galway ..

and the missus just had her last day of work here