Here is a short booklet made just for you by Boglehead William Bernstein, If you Can
It is also available as an e-book at Amazon.com.
Sounds like you have a good plan.
15% 401k 100% tech fund
I suggest you read Getting Started in the Wiki, and read a recommended book such as Boglehead's Guide to Investing. Also recommend the new booklet by William Bernstein for beginners, If You Can:
https://dl.dropboxusercontent.com/u/290 ... %20Can.pdf
or on Amazon.com.