Hi, i am going to Macau and Hong Kong with my family in March 2011. I would appreciate your comments and opinions on the following:-

(i) As we are going to HK from Macau, may i know whether we should take the Turbojet or Cotaijet, which is better or cheaper?
(ii) Should i buy the ferry tickets online in advance or on the spot?
(iii) As i m going back to Macau from HK on Sunday afternoon, but my flight is in the mid-night. Is there any good and safe place for us to deposit our luggages?