Not sure about overkill, Minecraft sounds great on a pair of DSP5ks. I swear you can hear the creepers.
I presume given your price that you're in the UK. You might like to adjust your profile so people have a better idea where in the UK you are.
Good luck with the sale.
MD600 running core.
5.1: 568.2mm, HD621, G55, DVP2351
2ch: MS200, AC200, DSP5k2s
2ch: MS200, DSP33s, Glitterball
2ch: Source Five, Flying Mole, SVS and Gallos
2ch: MS200, Fatboy valve amp and Royd Abbotts.
2ch: MS200, DSP3k1s and Control:One.
IoW: 18-bit 5ks, 562v (running newer EPROM) SBT with Mac Mini