486 upgrades
Tom,
have you considered upgrading your motherboard? You could probably get
a 486/50dx motherboard to fit your case size and scavenge all your
components. Here's some typical local prices in L.A.,CA (May 25th):
Brand OPTI
486/33dx 256k cache $580
486/50dx2 256k cache $780
486/50dx 256k cache $890
US brands, like Micronics/Mylex/AMI add $200-$400
I don't think the 486/66dx2 is out yet so, but it might be worth waiting.
As far as rendering speed difference between the 486/50 dx and dx2, I don't
know and the price at least at the motherboard level) is not that great.
Check your local computer papers or Computer Shopper for prices. Things to
look for are, IMHO, memory expandability to at least 64mb and standard
SIMM's acceptance (like 1mb x 9, 4mb x 9, 8mb x 9 etc), especially if
you're going to take your old memory from the 386/33 to the 486.
Personally, I would go for the 486/50 dx right now or, if I could wait, I'd
get the 486/66dx2 when it comes out. Good luck.
Martin
PS If you don't like playing with motherboards you could always get a base
system (m/board, case, floppy, 1mb memory – add $170 to each price).