Wanted: OT: Nikon 50mm f/1.8 D AF lens

The Nikon D3000 support AF-S lenses only... you won't get autofocus with an older "D" style (aperture ring) lenses like the Nikon 50mm f/1.8 D AF.

If you want a good prime lens for portraits I would highly recommend either:
Nikkor 35mm 1.8 AF-S DX
Nikkor 50mm 1.4 AF-S

Read some reviews and decide if the 50/1.4 is worth the extra cost

Edit: Just read your budget - £30-60 for a lens?!

Ooh that's very useful, thanks. AF-S it is then.

I like the look of the fisher price :) 30 - £60 I think is OK for 2ndhand - I missed out on nabbing a AF-D in great condition for £60 a few weeks back on this forum, and I know the older ones can go for around the £30 mark. But, as you've pointed out, I seem to have got my letters wrong anyhoo.