Will It Run pfsense? Yes.
Was It Easy To Install? Yes.
I purchased this unit for less than 100 dollars on ebay. This was a very quick and easy install. It booted from the flash drive without making any bios changes and performed a quick installation.
Note: I could not get the LCD to work with pfsense. If anyone knows which driver to use with LCDproc please leave a comment.
Storage: 250GB HHD(I think the standard was 160GB)
NICs: 6x1Gbps – Intel Based
CPU: Intel Celeron M 1.50GHz (32 bit)
LCD Controller: SPLC780D
LCD Part #: gfc1602