I'm trying to create an all-new medium-level gaming machine that is future-safe and has room to grow. Budget now is around 1K. Please see build below, let me know if it will work and offer suggestions. I could also use some suggestions for a wireless card.
Yep, it will work. Just so you know this is better than a medium level gaming system. This will max out any game, there are only 6 or 7 gpu's out there that are stronger than this. I would say the first mid range gpu is a 7770.
What is your monitor resolution and what games will you be playing? Your build is good for your budget and the 7870 is a great card that will play most games on the highest settings at 1080p. Don't drop to a 7770, you will be disappointed with the performance, a 7850 can be bought for around the $200 mark and would be the minimum you should aim for.
I guess you could go for a 7850 but I still consider that high end and will still max out most games. The 7770 is a good card and from what I have read performs well. But I say if you can get why not just go with a 7870. I plan on getting one soon and I fell like it is one of the best valued GPU's on the market right now. It is stronger than a 660ti but is $40 cheaper than it in general.
Either drop the SSD or switch out this card and RAM for that 7870 up above. Personally I would drop the hard drive and keep the SSD. That way when you guy a hard drive later on you don't have to reload Windows.
The total with the switch out would be $1,027.36 *not including rebates.