The i3-4330 is a very capable processor. It's a heavy hitter even with highly multithreaded games like Battlefield 4 multiplayer. It's not going to have any problems with Minecraft, that's for sure.
The GPU won't matter too much for minecraft, anything you can afford would be able to handle it. GTX 750 Ti would be a nice low power solution, but there are better deals when it comes down to pure performance.
What other games are you thinking about playing?