I currently use both a pc as a desktop and a macbook (late 2008). I am very tempted to replace my current desktop (a core2 duo E4500) with either an i5 or i7 imac. The dilemma is that the most important application I use on the PC is Microsoft Excel 2007 (Excel 2008 for the Mac does not cut it as I also need Access). I have seen benchmarks that show how the quad core i5 and i7s show significant performance improvements for Excel. That being said, is the imac running Windows 7 in bootcamp a better choice than say this Dell i7 I saw at Best Buy? http://www.bestbuy.com/site/Dell+-+Studio+XPS+Desktop+with+Intel%26%23174%3B+Core%26%23153%3B+i7+Processor+-+Black/9532749.p?id=1218120178969&skuId=9532749&st=dell i7&cp=1&lp=1 Thanks in advance. I apologize if this is too close to a pc vs mac post.