For my 2p worth I'd suggest starting with a heel/toe weighted blade putter. If you can putt with a blade then there is nothing much wrong with your technique (unlike me who has tried 2 ball and now the Rossa Spider).

I think the idea of finding a forgiving 3 wood instead of a driver is valid as it will definitely keep you straighter and if you can manage to work it off the deck too will still make long par 4's and shorter 5's reachable.