I don't recall whether or not Raiden is offering an M6 conversion disc. If they aren't ICS is a no go unless you want new to buy new bindings too.
If you're looking for a more wallet friendly all mountain board check out the Flow Infinite I-Rock or if you want a twin the Era. Though my favorite has to be the Signal Omni. Its a true twin drilled setback. So mounted centered on the inserts it's a directional twin, but if you center your bindings on the board it's a true twin. The Signal shop on their website shows them in stock though I don't know if that's updated or accurate. If you are willing to pay full retail for 2012 they get a carbons strip down the center of the board making them just a hair stiffer but more stable and snappier. And then you have the option of the 2012 Park Flat, very possibly my next board.