You can have my Mac mini for £250 notes. I recommend this as a good baseline system, and OpenGL is supported as standard on Macs running OSX from new.
Generally, I would say this is not a good time to switch to a Mac as they're moving over to Intel processors in the near future, but if it's only for compile and testing...
Generally, I would say this is not a good time to switch to a Mac as they're moving over to Intel processors in the near future, but if it's only for compile and testing...