Hi, I'm VERY new to Macs and have just decided to buy a MacBook. Due to being a poor student I think I will have to buy a secondhand one and luckily I've seen a 13" MB in the window of a shop near me for sale for a very cheap price (£230/$370). When I went in to find out what model MB it was I was 'warned' that it only ran Windows and the shop owner seemed to be suggesting this was a) stupid and b) the reason it was going cheap. Not knowing anything I enquired no further but having read a little online since then it seems this is not uncommonplace at all! I want to find out a little more before going back to the shop but also don't want to arouse his suspicions that I'm getting a bargain (if indeed I am!) It there an easy way to tell whether the system is automatically booting to Windows on a partition via bootcamp or whether windows is installed as the sole OS and OSX has been completely removed? If OSX has been completely removed what is the process for (presumably) formatting the hard-disk and reinstalling OSX? Apologies if this is an easy answer to find elsewhere... Thanks, Owen.