So here's the deal, i will be off to university in October, and my parents have agreed to put some money towards the cost of a Mac. However there are a few things which im deliberating over. My budget is £1000, (bare in mind i will also get a 15% apple educational discount) and i was wondering which Mac will be best for my needs. I will be studying Chemistry with Forensic Analysis, therefore i have a feeling there will be alot of time spent working infront of a screen writing up lab reports ect. I would prefer the Mac to be able to run various Steam games such as the Source Engine Games (Half Life, Portal 2) and maybe some online games. I am also looking for a new external hard-drive, my current Western Digital 1TB is failing and also formatted NTFS, so a reasonably well priced hard-drive which is compatible with both Windows and Mac, without being too much of a hassle to move stuff from my current to the new and be very reliable so i dont have to worry about losing my stuff. I really appreicate any help i get with making this decision as there are loads of conflicting ideas im reading on the forums. Thanks in advance.