You have posted your request in a newsgroup specifically aimed at the
computer language C++. There are probably people here who could advise
you - but that is not what this group is for.
The type of computer you need is dependent entirely on what you are
going to use it for. I would suggest you go and talk to someone nearby
- a school or college would be a good place.
Finally I'd avoid eBay. If you get something which is faulty you are
not going to have the experience to understand what is wrong, and even
whether or not it's you that is causing the problem.
Good Luck
Andy
On a side note, your advice isn't terrible if the OP was real.
--
Daniel Pitts' Tech Blog: <http://virtualinfinity.net/wordpress/>
Oops. I'll snip links in future.
However this is the only place I've seen it.
Andy