[mothered]

I have some limitations with my system, not being portable etc. That's why I want it

My apologies, you've mentioned that already and I neglected to read It.

In terms of a wireless card, @roger_smith has made some great recommendations. With regards to what system (PC), as mentioned, you don't need anything with superior specs. You've posted your budget (1000$ at the max), so just look for one that offers best value for money.

If you need assistance with what's considered as good value for money, just let us know.