Taking the plunge and flipping to my fixed

And +1 to fixed hill climbing being a bit easier

...If your fixed gear happens to be the perfect ratio that particular hill, and the hill doesn't change gradient.

The only problem I ever found was when going back onto my road bike for training at the weekends

very true, getting used to fixed was a doddle, then after a week i got back on my geared bike and it was the strangest sensation ever! - although once you have switched between the two a few times, muscle memory kicks in :)