to get that off you will need a crank puller. you can get them from a halfords or a local bike shop. this is what your looking for.
http://www.halfords.com/webapp/wcs/s...egoryId_242558 also you'll need a couple of sockets and a pair of grips. be ready tho as the bearings could be free running balls with no cage to hold them. when you do take them out rememeber to replace the grease in the bearing races.