I have dual booted linux/win for some time now, but always on the same drive as win. So my question is rather simple. Here is a little bit of general info on the situation:

a) I have a 1TB drive with Win7 currently on it. (DRIVE "A")
b) I installed an older 200GB drive to install linux. (DRIVE "B")
c) Which drive do I put the bootloader on? "A" or "B"?

I usually do the manual install and make the /boot,/root,/home,swap partitions myself. So do I still make a /boot parition? or just use the drop down to select which drive during install? or make a /boot on drive "a"? or "b"?

Just a bit confused. Thanks in advance!

If your talking about which drive mbr to install to, it would be drive A. The grub/lilo files will go in the /boot of you linux system. If you just follow the prompts during the install, if you don't want to create a boot partition

It would also depend upon which bootloader to use. You can install windows 7 with its bootloader in the master boot record of drive A.
You can install whichever verson of Linux you want with its bootloader in the master boot record of drive B.
Doing this, you will need to select drive B in the BIOS if you want to boot Linux.
You could also install Linux on drive B with its bootloader in the master boot record of drive A which should be set to first boot priority in the BIOS. This should give you the option to boot windows or Linux on boot without going into the BIOS.
You can configure the windows bootloader to boot Linux also. There is a program called EasyBCD to modify vista/win 7 bootloader to allow this. Used to be a free download but I think they charge for it now.

I always use bios settings to change the FIRST boot device. You have to understand that all OS's tend to rank the boot device in some order based on how bios see's it. If I have Drive 0 as windows then I'd change the bios to Drive 1 and install linux normally. The now drive 1 will seem to the installer as the first boot drive and install the boot loader to that disk. That keeps your windows 7 intact. When you want to change back to windows just select the boot media from a F key at boot or in bios. What ends up is you have two complete drives with two loaders. The one that gets selected is by bios choice.

Now if you want a dual boot that has a choice of a menu then that is different.