yeah its described as a strainer.
it can be done on the floor but its not fun.
youve got to support the engine from above really. theres a support beam we have at work.
one of these....
Sealey engine hoist / support beam - 3day auction! on eBay (end time 18-Sep-10 01:27:42 BST)
basically you take the weight of the engine with this on the lifting eyes on the head.
drop the bumper off and the front forward as if your doing the cambelt.
then you can remove the ally engine mount bits on either side of the subframe.
loosen the rear subframe mounts and pull the front of the subframe down and wedge a bit of wood inbetween the gap.
one of the aircon pipes runs under the sump as gets in your way, so if you dont have the fascility to drain the aircon then you need to unbolt the pump 3 simple 13mm bolts unplug the wire for the clutch too and let it hang on the pipes.
theres three 16mm bolts into the bell housing, oil return from the turbo, and all the little bolts round the sump inc the 2 at the back that are a **** to get out/in..........
in fact, yeah, id pay to have it done if i were you!