In regards to the loading times, are you able to give us a comparison between the Xbox 360 core, the Xbox 360 with hard drive and the PC?

Load times depend on a wide variety of factors such as the area you’re loading, how much data is cached, and how many assets can be reused from the area you’re leaving. Overall they should be on par with most other 360 titles. That said, an Xbox 360 with a hard drive will in general be about 50% faster loading than the core system. The PC depends a lot on the quality of your hard drive and motherboard interface, but on average, the PC should be at least as fast as a 360 with a hard drive, and probably slightly faster in many situations.