Hi Char,
Orcad is a good package, I've been using it for the past 3 years.  It took me
a little time to get used to it, but it has some nice features.  It's also
less expensive than Power PCB.  However, Power PCB looks like an excellent
package...I just saw a demo of it and would love to use it.  The cost was
higher than the company wanted to pay though.
Good Luck,
Kitty