Not much point in getting an SDS drill as I have no real for it, and I
don't want to have to buy a whole load of SDS bits.

You can always find some need for an SDS drill. I haven't bought a load of
SDS bits. Apart from a few large high quality 22-25mm long bits, I stick
with the cheapo bits/chisels that came with it and one extremely high
quality 7mm bit I use for brown plugs. I see no point in going for less than
brown plugs. I don't want something to be wobbly just because it doesn't
weigh 20kg.

Christian.