New it Business idea?

i have an idea to creat a business from home it would include an online store for computer upgrades, online storage and backup facilitys including email backup that can be done over the net to restore your computer, direct updates to programs also a facility to buy and have a new copy of windows installed over the net for you and also the ideah of fone and direct remote istace and haveing the ability to have technitions on call to answer and guide to repair problembs from their own home my question is do you think this is a good ideah and would you pay to use a service like this