Not necessarily true that orthotics always have to be put in a neutral shoe though MM.
It depends both on the orthosis & the severity of the overpronation.
You know your own feet a darn sight better than me, so if your podiatrist says put them in a neutral shoe, then in a neutral shoe they must go.
Lots of podiatrist's I have spoken to/read of though say that a support shoe can complement orthotics designed to deal with overpronation very well though.
Also, the medial post in the Zoom Elite is so small & ineffectual (esp. when combined with the other qualities of the shoe), that the shoe is effectively neutral-mild overpro anyway, so dont get too hung up on it.
Once Ive stepped down off my over-used soapbox....
To answer your Q, neutral performance trainers like the Skylon are very easy to find. Try your inserts in:
* Mizuno Wave Precision
* Adidas Response Cushion
* Asics DS Lyte
* Fila FGT Light
* Fila Flow K1
For Neutral Orthotic suitable (i.e insole is removable) racers, maybe try
* Saucony Fastwitch Speed
* Mizuno Wave Aero
* Asics Tiger Paw
Do make sure that your orthotics are OK in such an unstable base though, might be worth a phone call to your friendly neighbourhood podiatrist...