If youre on a budget I wouldnt even bother with a CF card. Theyre much more expensive than a standard 2.5inch ide drive, and actually marginally slower (although seek times are better on a CF card).
Im not sure where this whole CF card being a good option for an a600/a1200 came from, but unfortunately I fell for it and got a 32gig card. While this works fine I couldve either saved a decent chunk of money (32gig cf cards are pretty pricey per gig), or got a 320gig 2.5inch ide drive for the same price.
Remember, its mostly the a1200's ide port that dictates speed, not the storage medium (the a1200's IDE port is so slow that there'll be little difference, regardless of theoretical speed of a device).
Should be easy enough to find a 20gig or so drive for about $10 on ebay. If money was a concern Id go that route. Amikit are pretty expensive too, Id steer clear of them too unless you want to effectively donate to them for dealing with amiga stuff.