The site Audioholics is having some good deals on nice APC surge protectors and conditioners. APC is a well-respected name in the field of power devices, and there are some good deals on their stuff.
http://www.audioholics.com/news/indu...-blowout-sale/
I bought
this guy, which was in more my budget than the larger rack-mountable models.
While these are well-suited for home theater applications, I'm sure they would work fine in office situations too.