The plan:

[hirez]

Edit:

In case it's not obvious (and I guess it's not) the finger-in-air plan is to gut a F-P Activity Centre and install the faders & knobs of a standard cheap-and-nasty DJ rig behind the brightly coloured whizzers and slidey-things. Mind you, since the DJ-culture wave has crested and it's a visual joke that only six people would get, it may or may not be worth the effort.

Comments

[lee-chaos.livejournal.com]

Marvellous. I'm not sure I understand it, but I want one.

[hirez.livejournal.com]

See edit. Does that make more sense?

[lee-chaos.livejournal.com]

Makes mucho sense.
An alternative might be one of these (http://www.behringer.com/02_products/b-control_index.cfm?lang=ENG) if you were trying to do it in a laptoppy way and add USB. Knobs should port into a toy of your choice.

Also reminiscent of this fella's (http://highlyliquid.com/) handiwork.

[hirez.livejournal.com]

This one's strictly analogue and coming in at under £20 total for bits. (Free decks, 10p for the F-P and a tenner for the mixer. Bargain.)

And they do 'scopes on Ebay. Bastards.

Soldering iron, Dremel, Araldite... Sorted.