You can always just use olive oil, palm coconut, shortening, and canola.
Canola and shortening are kind of soft when soaped so use in small quantities..coconut will help harden them up.
Avacado, Jojoba, wheat germ and hemp oil ARE expensive and I wouldn't recommend trying them until someone has a little more experience...I had SEVERAL oopsies before my soap started turning out well..
No sense wasting such good oils...
here is a listing of suppliers by statehttp://members.citynet.net/leab/Suppliers_by_State.html
you will find that you can find palm and coconut much cheaper at soaping sites rather than a health food store.
If you don't find a supplier near you, it will still be cheaper to order the oils from a supplier online rather than at the health food store.
Some fun places are..www.brambleberry.com www.wholesalesuppliesplus.com www.todieforsoap.com
WSSP and brambleberry both have melt and pour...I WOULD NOT recommend trying the base at hobby lobby or michaels..
and there are recipes at www.millersoap.com
and fun lye calculators at www.the-sage.com