Well, I downloaded and installed phpEdit from
WaterProof Software in France and so far it seems quite nice. I've only spent a short time poking around but it reminds me quite a bit of the MS .NET IDE, which I admit was part of the reason I decided to try this one first.
Since my php coding is fairly limited I figured it would be best if the IDE resembled on I already know pretty well and I could spend more time writing code and improving my knowledge of php.
It seems to have a nice debugger and has ties to CVS and SubVersion, so that will certainly help.