Starting a DIY Multi-Touch project

The first thing to do is go to:
http://nuigroup.com/

Read the Wiki, browse the forums, learn.

That's where I began when I finally decided to go for it and build my own Multi Touch panel. I'm going to use this blog to share my experiences during the entire process.

First up, buying materials.

The largest portion of my shopping for materials so far has been ebay.

So far I have purchased from ebay (or am trying to purchase from ebay):
IR LEDs - I'm a bit worried that the lights I purchased are not powerful enough, but I went ahead and bought a lot of 110 LEDs, so any lack of power can hopefully be solved by just adding more!

LED Holders - I really don't know if I'll actually need these since I don't know how or where I will be attaching the LEDs yet. More on that when I talk about the build process. (Or at this point, the planned build process.)

WebCam - I got a pretty cheap no-name one off of ebay. I chose it because it says it has the ability to record in higher resolution than just the standard 640x480 you typically see. I'm sure the FPS goes down, so I probably won't use anything more than 640x480, but I thought it would be good to have options.

Projector - I don't actually need to buy once since my company has one I can use. However, I have gone ahead and bid on a couple on ebay. I really don't want to have to use the company projector unless I have to.

One of the most expensive items will be the acrylic. I found this store:
http://www.freckleface.com/
They are reasonably priced and will do custom cutting. There are a few places on ebay that would probably work as well, but they were really hard to get information from. I went with a 24x24 setup for now. (Probably end up with a 20x15 display, which will end up being a 25" diagonal screen. If I'm lucking I'll end up with 22x16.5 usable area which would be a 27.5" diagonal screen. 4:3 aspect ration... )

For a projection surface I have purchased a material called Rosco Grey. From everything I have read it is one of the best you can buy without out spending an arm and a leg.

I'm hoping that any other materials that I need I can pick up a Home Depot or Lowes. (Building materials for the frame, sandpaper, etc..)