I am new to Mac having been (and still am) a PC user but I wanted the MBA for portability. I love this machine. Although I have never been a fan of trackpads I have come to fully appreciate the versatility of the MBA trackpad. However, there are times I would much prefer a mouse. So I bought the Logitech V470 since I wanted a BT mouse and did not want a dongle hanging out from my sleek machine. It paired flawlessly and has programmable buttons. Now, my eyes are a little older than many here and at times I have a hard time reading small text. I know about keyboard shortcuts for zooming and even installed the font button on my menu bar. But I cant leave text enlargement on all the time since it distorts some web wages. The V470 has a left/right tilt wheel so I programmed left tilt to decrease font size and the right tilt to increase size. I also programmed the wheel push for quick view. Now when Im scrolling and the text is too small, a simple right tilt will zoom and when Im done a left tilt returns text to normal size so that the next web page is in proper perspective. This is very convenient and efficient since my hand never has to leave the mouse. I had considered the Apple MM but read too many bad reviews on the trackball getting dirty and clogged. Anyone have any thoughts?