OK, I think this is gonna be my plan of action for when retail hits. I'll be Marauder as main with a CON/THA helping out. I really think a Lancer would help this combo out well, so if any of you want to main Lancer, you may be able to join us.
Start game, Limsa hometown; start as main class. Do the exploit (if possible) to gain levels by killing jellyfish during the intro. Maybe until level 5-ish or so.
Do main storyline quest to get 30,000 gil. Buy miner's gear.
Have one party member get the tutorial mining leve. Initiate and share with other party members, everyone gets guardian aspect -> proceed to get lots of physical EXP to increase physical level. Rinse and repeat as necessary. Use the regular fieldcraft leves, if necessary, too.
Switch back to main class. Go and level in my super secret leveling spots until around level 10. Alternately, if that doesn't work too well, do some level 10 levequests to see if the SP/EXP gain is better.
Do rank 20 leves for the nice equipment rewards. Continue leveling main class with a combo of leves and good ol' fashioned EXP grinding.
If/When fatigue starts setting in, switch to sub-job and level that.
???
Profit.
Any crystals and materials that I get in this process will go to whomever is doing crafting from the start (Zomba, Geops, etc), free of charge, as always.
What do you guys think?