Want to setup basic home audio system

Diripio, I may have missed it, have we been given the room size? Room size, distance from speakers, loudness levels desired, all in addition to speaker demands contribute to power needs. Could you please provide us a little more guidance regarding the environmental aspects. 

Given none of the room variables are extreme, any 50-100wpc, 4ohm capable amplification will drive speakers having a true 86dB sensitivity rating and a reasonable flat 8 ohm impedance plot. There are many speakers that fit your budget and these constraints. 

I am curious as to what you are using now. 

Diripio, congrats on the NAK purchase. let us know what you think of the speakers you demo.

Re panels, you can easily make your own. Check out ATS Acoustics online.They make them and sell supplies for DIY.  I purchased the Roxul Rockboard and burlap fabric from them  (might find the roxul and fabric locally) and made frames from 1x3" pine.  

Placing panels behind speakers, at reflection points on right and left wall, and behind listening position works well for me. My room is 12.5' by 14.5'. May need bass traps in a couple corners as well.  
The amount and nature of room treatment is, like speakers, a matter of room interaction and personal preference. 

Waiting to hear how you are going to source your music. 

Wharfedale makes great bookshelf speakers that would fit into a sub $1000 system. Paired with a Yamaha A-S301 integrated amplifier which has internal phonostage and DAC onboard would make for a good start. A computer could be used as streamer.

Do you have Audio outlets nearby? If not look into Audio Advisor and Music Direct online. Buy used, the Audiogon market place is good for that. 

Well, If you are willing to up your budget to $1500 and are willing to buy used/dealer demo you have greater options. I agree it is best to identify speakers 1st. Then find a integrated amp which compliments. That said when cost is a concern it is best to look for speakers that can be driven by a 50-100wpc, 4ohm capable amplifier to loudness levels desired within the size of room where system is to be placed. With that in mind, should the right amplifier be identified you might wish to purchase it. 

Given you have a system in place you can afford to take your time, take advantage of deals as they come available and piece together a great system over time. Enjoy each improvement as it comes.

Regarding cables, I would purchase Canare 4S11 speaker cables. Great value, ~$1.50/foot. Purchase others used or discounted. 

I use a MacBook Pro as a source for my secondary system. Many amplifiers, speakers, and DACs have rotated within over the last few years. Currently I am using it with a Yamaha A-s701 via the 701's internal DAC driving a pair of B&W 685s. Both bought used via Audiogon. The 701 lacks a USB input, however I own a USB/SPDIF converter. The Yamaha A-s801 has USB input in addition to coax and optical. Though I mention Yamaha, it isn't the only brand to consider. I think the A-sxxx line is good value. I am also a fan of the NAD C xxx BEE integrateds. Back to speakers,  I may try a pair of Wharfedale Lintons should a used pair come up for sale one day.

Enjoy your search and keep us posted.