yeah I'm in same boat as you are I wish ya good luck.. I pre-ordered 2 Madcatz TE SF IV arcade sticks at retailer store/online vendor just because they have been so hard to find but obviously only need one and it's been about 5 days since SF IV came out and I still got none.. I can't find even the cheaper one from Madcatz or Hori sticks.. and fight pads will not cut it for me and the d-pad is terrible on Xbox 360 and PS3 is fine but I need an arcade stick for the game..
I called about 20 stores today ughh.. Gamecrazy, Best Buy, Gamestop, etc..
I did talk to Madcatz Customer Support and they told me more will be available in March and April at various outlets..
I would go with Street Fighter FightStick they are incredible from my experiences playing it on the arcade machines.