An A1200 accelerator to run Doom clones smoothly full screen.

[paul1981]

I'd say 68040 40 MHz to run Doom and Frontier, 68060 80 MHz to run Quake.

[paul1981]

Good to hear!

There's an 060 on Ebay at the moment, here:

http://www.ebay.co.uk/itm/Amiga-1200-Apollo-1260-68060-Accelerator-66MHz-64MB-RAM-/350579617292?_trksid=p5197.m1992&_trkparms=aid%3D111000%26algo%3DREC.CURRENT%26ao%3D1%26asc%3D14%26meid%3D538776492691794091%26pid%3D100015%26prg%3D1006%26rk%3D1%26

However it looks a touch chunky to fit into the trapdoor, and does say for a tower only.

Is £380 the sort of price I'd be looking at or is that overpriced?

Unfortunately they've gone up in price this past couple of years, still, £380 seems very high, and £220 - £280 would be more like it.
Yes, you'd need a tower conversion for that particular card because the 2nd simm socket is in the way of the keyboard.

I'd also look for a (revision 6) MC68060RC50 with the 71E41J mask (printed in top right of chip) as these run much cooler/draw less power and can be overclocked up to or above 80MHz (that CPU probably can't run above 66-70MHz).

One good thing about that card though is that the CPU looks to be socketed, so it would be easy to replace the CPU with a later version 71E41J at a later date.