Just make certain the receiver you end up with (some folks go with all in one HTIB systems) has the appropriate inputs for your turntable. Otherwise, you would have to buy a separate preamp if all it had was 'aux in'. The following model is quite popular:
You will have to figure out how you are going to hide your wires.
FWIW, Airport express can utilize a $5 digital optical cable to connect directly to that input on the receiver/HTIB system.
Energy Take Classic 5.1
Denon AVR 1613
*I picked this one because it has a strong feature set, including apps. You could grab the $20 photo preamp, or find a different receiver model with traditional phono input, sans all the bells whistles of this model. My guess is you would have to use one anyway since newer receivers don't typically have dual phono inputs.
I'm looking to get a home theater system for my TV, Satechi Cyclone Micro 2+ (USB2.0 1080p Media Player Adapter), Nintendo-Wii, Technics SL1210MK2 turntables, and if possible even to connect my Macbook directly or via Airport express / Wifi. Can you suggest how i can possibly do this with a budget of $1-1.2k? I am hoping for a simple setup with speakers mounted on the wall without visible wires. Thanks a lot!!