Anyone think the jump from a D90 to a D300 or D300s is worth it if planning to add FX to the mix? I plan on building a DX/FX kit eventually and want to keep the DX for sports/wildlife, general extended reach stuff. My thoughts relating to my current lens collection is that I would sell the 18-200 to offset any upgrade costs a bit. Near future would be to sell the 10-24 to get a 14-24 2.8 Would you upgrade the D90 to D300s, or keep the D90 and get a D700? Leaning towards the D90/D700 combo.