Selling HP Laptop/Trading for Desktop - $500 in Belleville, Ontario for sale

I am looking to trade my upgraded, new HP Pavilion for a desktop of similar or slightly lesser specifications, also willing to sell for $500

Laptop Specs:
15' display
Windows 8.1
16 GB RAM
750 GB HDD
AMD A-8 Quad-Core Processor with HD 8510 GPU
Logitech Wireless Mouse

I am looking for a desktop with at least a dedicated GPU in the 1GB range and 6 - 10 GB RAM. Though, I am flexible.

Why am I looking to trade? I was intended to move the UK where space is at a premium, and so a desktop is impractical. Now that I'm not moving to the UK, I'd like a desktop that I can tinker with again.

Open to any and all who wish to contact me.