Get the 030 accelerator. There are others than the Blizzard that are just as good. The DKB Cobra is also an excellent choice. Even the GVP are good - IF you get enough RAM when you buy it. The GVP uses a special SIMM that is outrageous expensive!
I've used a DKB 030 carded A1200 for years. It is extremely stable, and with 32 Mb of RAM runs anything I have thrown at it. Used to be a 32Mb SIMM was a bit pricey. Now they sell for about $15.00 (or less)
Good luck.
