I watched some vids and saw that KeywordMixer.com was a good tool to rework your existing list of keywords into multiple variations but the site is down. Does anyone know of a similar site/tool?

If you a talking about mispellings, here is an online one
http://www.domaintools.com/domain-typo/

How about this?

hXXp://www.mikes-marketing-tools.com/cgi-bin/adwrapper.cgi

I would use speed ppc. It does well for me.

theres a program out there called keyword tumbler thats free and does the same thing. Also, Keyword Expert (you can probably find a cracked copy) will also generate mispellings.