That's looking pretty neat. You've got a similar set up to me, minus an accelarator, flicker fixer and RTG card.
I've got a Picasso II in mine it works very well and they crop up on AmiBay/eBay quite often.
If you want an accelarator GVP-M have one for the A2000, you can get them new at SoftHut.com.
Weed.