Before I answer, since this is my first time posting in this specific section of the tomshardware forums, let me lay out my credentials:
Ex Network Engineer, previous CCNA Cert and A+ cert, current IT Recruiter of 6 years in the San Francisco Bay Area and Silicon Valley with Startup and Fortune 500 companies.
Now, with that being said, based on where you live (your profile says Chicago, not sure if that's still accurate) and your getting your CCNA with a little bit of experience and promotion to a lead position, I'd say that asking for $20 an hour isn't at all unreasonable. Most CCNA's and junior network engineers make between $20 and $25 an hour to start outside high tech areas, and in high tech areas (silicon valley, austin/houston, new york, etc.), add $5-$10 more for starting pay.
Hope this helps!