Amazon Store Card - Six-month financing offer if you're interested. This offer comes & goes, so not sure if it'll be available.
Lenovo ThinkServer TS140 70A4000HUX i3-4130 3.4GHz Server Desktop Computer
WD Red 1 TB NAS Hard Drive: 3.5 Inch, SATA III, 64 MB Cache - WD10EFRX
Monoprice 18-Inch SATA III 6.0 Gbps Cable with Locking Latch and 1 x 90-Degree Plug (108783)
Windows Small Business Server 2011 Standard
Get this too, if you think you'll need to upgrade E2 to more than 5 users in the near future.