Well with a budget like that, I assume you're doing professional work? Any PC will easily handle those programs (photoshop doesn't need a good processor), but could you at least give us an idea of what kind of footage you're working with in premiere, how large your projects are, and how important time is to you? Like, for example, would the difference between a 30 minute render time and a 50 minute render time in premiere be worth almost 2000 euros to you?