C.P.
Hi V.,
Short-term, you can try sittercity.com - for your area, these sitters come up:
http://babysitters.sittercity.com/search_sitters.html?&am...
It's a little hit or miss, you may have to interview a couple before hiring one, but it has the advantage that you can select babysitters with a background check and specify any needs you may have: driving, first aid knowledge, etc.
The other option is to join a local parenting support group, like MOMS club. You can meet other moms there wiyh kids of different ages and consider swapping babysitting duties.
Lastly, check with your church, hight school, or local library - they may have leads on childcare services or babysitters.