If you intend to do a lot of rendering as with video, go for an i7 processor, and at least 8GB of RAM.

Years ago in XP days i had an AMD Acer, processor blew up on me, only 2 years old.

Usually with computers you get what you pay for; i bought an expensive refurbished Dell Precision, had windows 8, now 8.1, and the wife confiscated it for every day use: gaming, mailing, shopping. Put an extra (old BIAB 1.5 TB drive pulled out of the USB case) in it as it had an extra bay. Never regretted this Dell; superbly stable and fast for over 4 years now.

SSD drives came down quite a bit pricewise, but with windows you'll need at least 100 GB room for the OS only, so if you use a lot of DAW and audio, and BIAB installed internally you will need quite some storage space ... f.i. an extra 1-2 TB drive.