I bought a HT just over 12 months ago for just under a grand. It came with a light 7005 alu frame, decent fork (Reba SL), decent drivetrain (full SLX, token XT rear mech), decent wheels (Sun Ringle Ryde XMB), decent brakes (Formula K18), decent tyres (Schwalbe NN/RR) but modest finishing kit (Easton EA30 all round).
That was a pretty perfect spec for me. The most expensive bits – frame, fork, brakes and wheels – were all solid. The drivetrain was also better than expected, but this would be less of a long-term priority as it will be replaced over time anyway. Still, at £1000 I'd expect at least full Deore, but probably SLX. If you're going to save money, do it with the finishing kit. Things like saddles, bars and pedals are so specific to the individual that they'll probably be replaced anyway. At this pricepoint, weight isn't going to be so much of an issue, so a cheap stem/bar/post will be fine, but as one poster above pointed out, that doesn't mean you can't get reasonble stuff (Charge Spoon, etc). In fact, I wouldn't even bother with pedals.
Hope that helps.