The logo is very poor quality, surprised to see that this was done by AEIOU. Why in the world did they cram it all the way at the top.. it should be centered properly to the left of the currency symbol graphic.
The navigation bar needs improved, it seems to have a weird white strip just above the text that should be there.
You should capitalize "Currency" in your "Rarecurrency.com is for sale!" link. The domain doesnt look as appealing without proper capitalization.