I want to buy a new laptop, but which?

I am due for a new laptop, mine is 4 years old and kinda beat up, I used it in college. Its a mac iBook g4. Now I’m not set on another mac but since I have an iPhone and all my graphic programs are for a mac, that’s what I am leaning towards. Now I don’t have alot to spend, can you guys recomend the cheapest and best laptop for a graphic designer. Mac or windows is cool.