Both are fantastic courses (And fairly similar), but I think the Jubilee is the better of the two, especially the closing 6 holes. I wouldn't think it is too difficult for a mid/high handicapper as long as you keep the ball on the short stuff. A lot of the gorse has been cut back over the winter so it should be good.
Buy a strokesaver as it tells you what line your tee shot and approach shots should be, something the Skycaddie doesn't! (Also nice to keep)
I can only repeat and emphasize the opinion of the former posters. Both me and my golfing pal prefered the Jubilee Course although I scored better on the New but maybe because the wind was calmer that day !