Computer differences...?

I think your best option would be to go to somewhere like Best Buy etc. & talk to someone & tell them everything you want & all your needs etc. Then after finding out all the info you need you can make the proper buying choice on the web site. It would just be too lengthly to get into here. There would be too many questions to ask you that would arise, that the sales person would be most likely to do & be able to better help you with your choice.