How to remove concrete garden slabs/flags?

[Danmurphy]

A friend has asked me if I will remove some flags for them (they can't afford a professional, and cannot do it themselves (permanent wheelchair users).

The only issue is the fact that there is concrete filler between the flags, which also makes me think that they have been laid on concrete also, which is obviously going to anchor them to the ground rather firmly... would I need one of them jackhammers or whatever they call them for that?

Anyway, I only have the following tools;
Crowbar for prying and lifting, a 110oz sledgehammer, an old chisel and a club hammer. I could probably get a pick axe if really, really necessary.

I need tips! Will these tools be sufficient and how do I go about removing the slabs?

[lutonlagerlout]

you need to get a crow bar or pick between the flags dan to get some leverage
there are very few flags laid in the uk that need a BREAKER TO GET THEM UP
soz caps
so you chisel a small hole then get your bar in and lever them up
see if that works first
LLL