http://www.newegg.com/Product/Product.aspx?Item=9SIA5YV3JK1476&cm_re=HP_Compaq_6000_Pro_Micro_Tower_Intel_Core_2_Duo_2.93Ghz_E7500-_-9SIA5YV3JK1476-_-Product

The business/enterprise PCs from HP differ substantially from the consumer PCs they make for, hmm, consumers.

Don't expect any live support from the vendor or HP for this refurb unit. But you can return it to vendor with restocking fee if it fails to meet your expectations. You can download drivers and manuals from HP website.

It will be difficult to find another deal as good as this below $100 with free shipping, and this one has Windows 7 Pro preinstalled.

Good luck shopping.