Newegg.com has Windows Home Server 2011 for $99.99. You will have to use a coupon code but there is free 2 day shipping. Couple this deal with today's earlier post on hard drives and the Antec 300 and you are well on your way to a new server. Check the forums for what's hot in motherboards!
Coupon Code: EMCKDHJ54
Thanks to krom in the forums for the tip!