What would you buy?

What would you buy?

So here is my situation. I have one working computer (as the other one suddenly died) that I use for my writing projects, articles etc. But, my daughter also likes to use my computer for her homework, games, etc. At this point, I don't want to purchase a brand new computer as it's not in the budget. So I have the option of an eBay computer, reconditioned from reputable source (staples.com, etc) or a tablet.

I need to be able to access my sites online.

I would love to go with a laptop of some kind as those are very nice to use and portable and can usually pick up wifi in a hot spot, so it would be good for on the go and travel.

I'm worried about buying from eBay. Are those computers really any good? Did you ever get a good computer deal from there?

Everyone is getting tablets this year, but I don't really know if it would be feasible to use a tablet to write articles or manage a forum. I'm assuming they have some kind of on screen keyboard app that you use. But i'm more accustomed to using a keyboard. Is there a way to plug in a USB type keyboard? (I'm guessing no).

So those are my concerns.

Anyway, which one of these ideas would you choose? Or, if there is another alternative, I'd love to hear it.