Why don't you take a look on
http://cheapwindowsvps.com/. They are offering different packages for their customer. You have mentioned that you are looking for 30 gbs of space, 1 gb of ram and 450 gbs of bandwidth. They are offering a package with these facilities
1 GB RAM (VPS)
$10 / month
1 Intel CPU Cores @2.0 GHZ
1 GB Guaranteed Memory
40 GB Solid State Drive Space
1 TB Monthly Bandwidth
1 Gbps Network Port
Windows 7/2003/2008
Remote Desktop Access