Safari Displaying "fuzzy" text on site

Hello- I'm getting complaints from customers using Safari on both Mac and Win that our site is rendering fuzzy text. Site is managed using RapidWeaver (great app) on the mac. I'm using Safari 5.1.4 on Snow Leopard and it looks good to me.

Site: http://www.simdevgroup.com

I've recieved an unusual amount of comments about this for last 2 weeks, but can't reproduce. Anyone else run into something like this and/or does it look fuzzy to you?

Thanks for the help!