who is and on mac how to get privacy of my website/where to buy domain and host?

Hello,

I am trying to build a website. I use a macbook

I want to register something like example.co.uk and a example.com, and just use the .co.uk address as my website, and if anyone types my address as .com they get redirected to .co.uk or even just have an error page as I think that will be free as no hosting?? If you could clarify this for me i’d be grateful.

I noticed that for .co.uk you cannot have whois privacy.(at least on the websites I looked on) This is my main reason for posting today, as I want my details kept private for both websites, and I want hosting for .co.uk

I am using iWeb to put my site together and I from what I understand I don’t have to use .mac so I have to use a host with FTP.

Anyone know any good ones to use? I’d rather buy domain and get hosting from same company instead of 2 different ones.
I have had a look around and don’t seem to be getting anywhere.