Personal Operating System 7.3 right out of the box from Office Depot ;-)
As far as the browser goes, Konquerer 3.0.0-12 and Netscape 4.79 (distributed w/Red Hat). I do not have Squid running and this box is hooked to a modem. I'm using KPP to dial up an ISP.
Damn, now I'm done posting, will have to only read now :-(