Ok, so I decided to dual boot Ubuntu 12.04 alongside my Windows 7 install. I'm on a Toshiba Satellite A665-s6050 if it matters, Windows 7 64-bit, 500 gb hdd.
I partitioned 80 gb of free space to install ubuntu in. Struggled with the manual partitioner since the auto install thing wasn't showing up. Using various googled tutorials, I made two partitions out of the free space, a SWAP partition about 2 gb in size and the other 78 gb partition, with mount point of "/" and tried installing. It installed, but when I booted again, it would only boot into windows.
So I tried running the install again, and this time it gave me the "Install alongside other operating system" and when I clicked that instead of giving me the slider bar where I allocate space, it went straight to install.
It is now working, and I'm dual booting, but now when I boot into windows, everything is as expected, my C: drive is 80 gb smaller bla bla etc. etc.
But when I boot into Ubuntu, it gives me access to my entire HDD, even the windows files, and I'm not sure why. Did I limit Ubuntu to 80 gb or did I only limit Windows 7?
I'm thoroughly confused, it did not go as smoothly as it has when I've done clean installs of Ubuntu before on other computers. This was my first dual boot and it was a total pain in the ass.