I read about a different method the other day I have never tried it (because you need to have Windows on your mbr for it to work and I don't have). If it works then I believe it is a far better way to dual boot than I have ever heard of before - if it works.
This is what you do.
Install Windows first
Then install Linux which will recognise the windows install and add it to the grub start up list. Where the process differs is that you DO NOT install grub to the MBR, you install it only to the partition you are installing Linux on. This is easy to achieve, you just click the 'Advanced' button when you get to the summary screen of the installer (step 8 I think it is). In here you will see a drop down box with a choice of places to install grub the default is the hard disk mbr but you change that to the correct partition instead then install normally.
When the install is finished - but before rebooting, you open gparted from the live cd and have a look at where the boot flag is (it will probably be on your windows partition still). If that is the case move it to the Linux partition. (simply right click your linux partition select manage flags and tick boot) If the installer has moved it to the Linux partition then you need do nothing.
When you boot you should be presented with a grub menu with a choice of linux and windows.
So far there is not much difference from a normal install. The difference comes though if you want to remove linux at any stage. With a normal install (grub on the mbr) removing linux will result in a failed boot and you will have to repair your mbr from a windows disk. With this method, all you have to do is to move the boot flag back onto your windows partition with gparted before you delete your linux partition and windows will boot again on its own - no effort and much more user friendly.
Should you decide to install a third distro you repeat the procedure above but this time move the boot flag to the new install (which will already include the other two distros in its boot menu).
I stress I have never tried this, but it came from a very authoritative source and would not have been published if it didn't work.
So now you have three choices of what to do!
EDIT. I just tried this out in Virtualbox - it works, so I can really recommend it.
Fujitsu Lifebook AH532 Laptop. Intel i5 processor, 6Gb ram, Intel HD3000 graphics, Intel Audio/wifi. Realtek RTL8111/8168B Ethernet.Ubuntu12.10 (Unity), Mint14 (Cinnamon), Manjaro (Xfce).