I'd skip all the other presents (to make the budget stretch) and go for this jack:
Sent these to the missus..
Quite a few on here have this exact model of jack and its excellent. Literally the only jack you ever will need.
It goes under pretty low, while being to jack the car up around half a metre. I had a Lidl jack like the RAC one in your link and while its ok, it's not a patch on the SGS. Given me loads more confidence when jacking stuff up. Not least that I can get it high enough to easily put stands under at a reasonable height.
My only complaints I guess would be that it's freaking heavy (30kg ish) and so quite a thing to lug out of my garage everytime I use it. But then that is what makes it so stable when using. Would also wish it had quick pump up when no load. They do a fast lift one (as Noel posted) but looses a bit on the lift height. I'd much rather have the extra lift height and just have to pump a couple of times more. However both are minor criticisms on an excellent jack.
This gives you an idea on the size difference between the generic 2 tonne jacks like the Aldi and that RAC one VS the SGS 3 tonner. The SGS makes the other look like a toy.
Certainly is on the top five best ever car tool purchases I have made.