My experience with the Wharfedales - you won't need a sub right away. Big Bass, but lacking in subtlety. Good all-rounders for the price.
At the end of the day, it's gonna be up to the individual taste, I'm afraid. Plus, I'm not sure if Hi-Fi Corp still stocks it. Elsewhere they retail for R5100.
If you're upping your amp, then I'd suggest you also up your speakers