I talked last week (April 18th) and gave a demo of using solder stencils to make surface mount PCBs and promised to post useful links.
I had my stencil made by Smart Prototyping ( http://smart-prototyping.com) – they offer stencils starting at $20 when boards are made (http://smart-prototyping.com/index.php?route=product/product&product_id=142)
Seeed (http://www.seeedstudio.com) also offer stencils for $70 (http://www.seeedstudio.com/depot/pcb-stencil-service-p-1391.html?cPath=185)
I ordered the stencil jig from AliExpress from: http://www.aliexpress.com/wholesaleproduct/wholesaleProductDetail.htm?productId=671199709&productSubject=NEW-stencil-printing-machine-24-30cm-Stencil-Printers-SMT-Stencil-Printers-manual-stencil-printer-with-solder - they come in a bunch of different sizes
I ordered my cheap reflow oven also on Aliexpress from: http://www.aliexpress.com/wholesale?SearchText=t962&CatId=0&catId=
Stencils can also me made on a stencil cutter (http://blog.makezine.com/2011/11/01/solder-stencils-via-electronic-craft-cutter/ - google around there are lots of articles)
Tiny URL for this post: http://tinyurl.com/cqwjzaq