On the whole prices are probably equal, the A1200 is more expensive as a buy, but 030 cards and specially ethernet cards are much cheaper to come by. A strong reason to go for the 2000 would be the VGA (Flicker Fixer i presume?), getting one for your 1200 would set you back at least 100€.
In case you choose for the A2000: Word of caution, look closely at the battery, they leak. It's not a gamble if they have leaked or not, the gamble is how much damage was done by it.
