You are probably aware by now that you won’t be able to upgrade until July 2011 but once you see the Lion app in the Mac App Store you will want to download it straight away. We take you through the steps to make sure once it is ready, so are you. Follow our guide here… Ensure Your Mac Can Run Lion Perhaps it sounds obvious, but you must have an Intel Core 2 Duo, Core i3, Core i5, Core i7 or Xeon processor to run Lion. If you’re not sure which one your Mac is currently running, just click the Apple icon at the top left of your screen…