affordable computer with these specs

NErtle

Reputable
Jan 8, 2016
5
0
4,510
• Core i3 processor
• 4GB RAM
• 128 GB SSD
• Dual monitor support
• Back of monitor (VESA) mount bracket
• Windows 7 Pro 64 bit operating system
 
The VESA mount is where you're going to have a problem.

For your needs, sounds like an Intel NUC (or similar) is what you're looking for.
http://www.amazon.com/dp/B00JZE20SC?psc=1

Or a Gigabyte Brix
http://www.amazon.com/Gigabyte-i3-4010U-Barebones-Thickness-GB-BXi3H-4010/dp/B00I05NH9S/ref=sr_1_3?s=pc&ie=UTF8&qid=1453415492&sr=1-3&keywords=gigabyte+brix&refinements=p_n_feature_four_browse-bin%3A2289794011
Plus a 4GB soDIMM module (or more) ($20-$25?)
Plus an OS ($90 or so)

You'd come out slightly cheaper - but the Intel NUC is ready to go out of the box.