for about $400 you can get a slide scanner that does an excellent job and is pretty fast.  I've read  a few reviews of scanners in the $100 range and the opinion varies.  The speed of your computer may also be a factor.

If you do opt to do it yourself and get a dedicated slide scanner there are 3 things I'd like.

1.   Let us know how it works and how satisfied you are with it.

2.   If you're done with it I might be interested in buying it.  (some reasonable discount though)

3.   What computer processor and operating system you are using.

good luck.