I was a Windows user until about 2000, when I started also using various Linux distros part time as well. In 2007 I chose to move over to Mac and I haven't been the least bit displeased with the choice. I just bought my second Mac this year, and don't see why I'd want to switch back to Windows in the future. If I abandon MacOS and Apple hardware, I'll almost definitely go the Linux route.
I opted to switch to Mac for system stability, hardware quality/consistency, aesthetics and (imo) a superior user interface. You can't customize as much as you can with Windows or Linux, but I've not really felt the need to customize MacOS to the degree that I've needed to customize the other OSes, it makes sense as it is and it looks good, so it hasn't felt like a limitation.
In the modern world, compatibility generally isn't an issue between Mac and Windows users. Most of the major software for productivity work on both platforms, i.e. MS Office and the like. Gaming is about the only area that most users might have an issue, but, you can install Windows on Apple hardware to play games if you really must. For professionals, it really depends on your area of work as to which platform is better; for some, they require Mac specific programs, others require Windows specific software (i.e. AutoCAD)... but most can find software for either platform. Traditionally, sciences and arts were somewhat dominated by Mac, but the lines have blurred.
Mac OS X-Computers are very easy to use in existing networks. The most networks (like wlan) are based upon standards Mac- and iOS-Hardware is compatible to. The most external hardware like keyboards and speakers is supporting Mac. And if some hardware isn't compatible to Mac, it is not important: Macs are working out of the box and they have everything you need to work with.
Apple-computers are as easy as windows computers to integrate in existing networks.
buy an hp dv6-3141sl is vanilla compatible...doesn't work the wifi card