I don't want to use an external enclosure as I will be booting from this kinda often and would rather it be inside.
I don't have these switches ordered yet but here's what happened yesterday. I had cloned 1 HD onto the other (kinda like dual-boot but with basically the same system) and then had them plugged in as follows:
Original HD - Master end of IDE cable, jumper set to master, no power plugged in
2nd HD - Slave plug on IDE cable, jumper set to master, power plugged in
When I turned on the PC it booted fine but then I saw the hard drive light on the front of my PC was staying on constantly and the PC was a bit slow and lagging. So I shut it down and switched it so the 2nd HD was plugged in the master plug on the end of the IDE cable. Then when I fired it up it worked fine, the hard drive light wasn't on the whole time and the system was faster.
I figured that it was maybe trying to find the master or something, but I had the jumper set to master. I just thought of the fact that on the HD sticker it says to take the jumper completely off for master and that on the actual HD chassis(?) the little letters had master being put the jumpers in the middle.
I talked to a guy at a local PC shop and he said I might have to go into BIOS
and change settings in there but I am not very comfortable messing with settings like that.
I may try to change the jumpers around and get back to you guys if it works. I have to go to work now but thanks for all the advice so far.