Cheap and Easy. 123-Reg.
When you check out you will be offered hosing but you don't have to add it.
Just checked the control panel and you can do all sorts of URL forwarding to send you to another site or send you to a site in a frameset so your domain still shows in the address bar (nasty!) and more.
As a cheap way of using email you can forward *@yourdomain.co.uk to
you@yourISP.co.uk or gmail address or whatever you have. No need to buy pop domains this way. You can set up email forwarding too for free.
Domains cost £2.79 a year for .co.uk or £8.99 a year for .com.
They had some DNS issues a while ago, very nasty, took a lot of sites offline. Would have thought they would have sorted this by now though...