Advice on GS upgrades

[Toby Creek <creek@aur.alcatel.com>]

I recently bought a IIgs ROM 01 with 512k, a 3.5, a 5.25, 
monitor and ImageWriter II to replace the hole in my life
left by my LOADED //e that I sold nearly ten years ago.

I never had any idea that all this stuff was available for
these machines.  I'd like to upgrade this thing so that
it'll do more, so I'm seeking advice. 

First off, I am cheap.  I got that whole thing for $10, and
I don't want to put $500 into it.  Here's some of the things
that I am considering.

SCSI card - I like the RAMFast, but not the price.  
I'm thinking about the CMS card that Alltech carries, or
the Apple High Speed card.  I don't really need a whole 
bunch of speed or device support: I'm only connecting a 
hard disk. Everything else I hope to do via Appletalk 
with an Ethernet converter running to my Sun box with 
netatalk.  Is DMA defeatable, so that I can run 8MB without
doing the RAMdisk hack?

Memory board - The Sirius board looks cool, and I could 
populate it from 0MB easily.  Any downsides to this board
(besides the 4MB DMA limit with Rom 01)?  The Sequential
board looks OK too, but I have the RAM for the Sirius,
so I could get into it cheaper.  Does anyone take the
IIgs expansion board in trade?  I have one complete with
box and shrink wrapped manuals.

Accelerator - Anybody have one?

Fan - Where is the fan header on the GS mainboard?  I have tons
of muffin fans that I could use for this purpose.

Thanks, 
Toby