If I started now with a $2M portfolio, I'd look for every easy risk-free way to make money and build up the port quickly. I wouldn't take any risks at all--one bad adjust and you could effectively be zeroed out.
1) Check out the bond charts at Project Genome and play the weekly adjust, starting with those with the highest dROI
2) See if there's a spread between a stock price (esp. post adjust) and its CX derivative. If there is, buy the underpriced one, short the overpriced one, and pocket the difference as risk-free profit. Prioritize the ones delisting soon (which has the added benefit of saving you the commission on the back end post delist).
3) When there are holiday warrants, see if any are arb (AVATAR, cough, cough...) and max out on that
4) Figure out other ways to look for free money. I've posted on the Movies Board something rather complicated re puts and calls, but I think for certain situations, it makes a ton of sense, especially if there's a big spread right before halting, because it lets you make some quick money with zero downside.
At a $2M port, the goal needs to be value preservation as well as value creation. Once you get to a $50 or $100M port, you can put down more speculative bets and play more openers without putting the entire port at risk.