Roland,
There is a Yahoo group that had quite a bit of discussion on toaster oven baking. It is not very active but the archives will be useful if you are looking at this aspect of circuit manufacture. Here is the link:
http://groups.yahoo.com/group/E-Z_Bake/HTH
John C
> -----Original Message-----
> From: Roland Harriston [mailto:rolohar@...]
> Sent: 08 December 2006 16:27
> To: Homebrew_PCBs@yahoogroups.com
> Subject: Re: [Homebrew_PCBs] Hot air and preheating
> Thanks for the information.
> My wife discarded such an oven a while ago.
> She got a very fancy (read: expensive) one with a lot of controls,
> but I managed to retrieve the old one the trash can.
>
> I'll have to give it a try.
>
> Thanks
>
> Roland F. Harriston
>