If we go at all, I'm thinking of a three-nighter in Moorea, since the prices for the 4-night pre-cruise package isn't much different than Tahiti (based on 2004 prices). This is the mid-range option.
The minimal option would be a one-nighter, preferably at the Radisson, or my personal favourite small local hotel, the Royal Tahitien.
The extravagant option would be a pre-cruise to Nuku Hiva or Huanine. I would love to see the Marquesas, and I'm thinking that staying there would suit me better than cruising there.
Haven't seen the 2005 prices on any of these yet.