Avoid the £30 SDS range, and go for a DeWalt, Makita or Bosch SDS, all
of which can be had at under £100. I (and several others) have a DW566
and am very, very happy with it.

Whilst undoubtedly of much worse quality, I have a 30 quid (actually 50 quid
at the time) SDS NuTool and am still very happy with it. It would certainly
have no problem drilling mounting holes in concrete and brick.

Christian.