Which upgrade should be my priority?

I was going to buy a new integrated amp to replace my Yamaha receiver,but money is tight right now. My choices
are:
1)Atacama Audio Nexus 6 speaker stands ($160)
2)New Power Cord for Music Hall MMF CD25 cdp. ($100)
3)12ft.Speaker Cable to replace 6yr old Monster 12 gauge($100).

Please let me know which I should upgrade first, what product you recommend,and if you have any experience with your recommendation. Thanks a lot for your help on my other threads.