White laser pointer? An ambitious start but if you have some experience of optics, (as you seem to have from other posts), then we look forward to seeing it!
I'm guessing that this experience means you already have a handle on safety and some good knowledge too so no need to point that out but have a look at the, "Rules and Stickies", to familiarise yourself with the forum.
What is your background? Tell us a little about yourself.
Look around and use the “Search” function, it is very helpful if you’re looking for some specific information. If you don’t find what you want the first time, try different “key words”.
A good place to start is here, the “Rules & Stickies” section, pay special attention to the “Stickies”: http://laserpointerforums.com/f36/
If you’re looking for information on how to build a laser check out the links in my sig.
Enjoy your stay!! You will find this a great community with lot of very knowledgeable, friendly, and helpful people. :beer: