P3D a slide show / computer control question

["John Asbacher" <asbacher@xxxxxxxxx>]

I will, probably, ideally own / run this kind of setup.
I would like feedback on what I should use / change.

4 projectors
4 lenses(identical)?, probably zoom so that I can maximize images
2 dissolve units
2 racks to hold all this stuff.

For the slides;
Glass mount, with no "ring" effect? I don't know what that means.

4 kodak IIIA projectors, already got these.
4 lenses????? clueless.
2 dissolve units clueless. AVL FX-2 dissolver?? what else is there?

I plan to use a laptop for audio playback (with 5.1 sound) + use it to send
out cues to the dissolver.
So a dissolver with "only" a serial port control would be ideal. Do these
things exist?

2 racks, very nice, totally adjustable... already got these.

Gepe slide mounts with glasses (price was $15american for 40)
Do people get rid of their glass mounts??? can you get 500 of them used
somewhere?

Am I missing anything?
Oh! and the screen!!!
I was thinking of getting a 9x12 screen... this should fit a 'standard' AV
format frame.
http://www.hurleyscreen.com/surfaces.html

I shoot with two Minolta 7000's on one of 3 bars that I've made.

John Asbacher  2834  Vine  Street
Vancouver,  B.C.  Canada  V6K 3L4
(604) 734-3447 asbacher@xxxxxxxxx