"Ok guys right now I have a 128gb ocz vertex 3 ssd and I want to get a bigger 512gb crucial m4. How would I go about cloning my data from the old to the new?"
Before going further, do the solid-state drives come with a standard-size SATA connector?
If so, if you don't mind parting with $20-25, get one of these:
http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias=aps&field-keywords=usb+sata+dock&x=0&y=0
(many items shown, they all work the same, just pick one you like that's cheap)
Over at dealmac.com this morning, I saw a blurb that newegg.com has one right now for $12.
Then, download the free version 3.4.6 of CarbonCopyCloner from:
http://www.bombich.com/download.html
Hook up the dock, put the new drive in, turn it on.
Then, initialize it using Disk Utility.
Then, launch CCC.
On the left, pick your "source drive" (your current internal)
On the right, pick your "target" (your new drive)
Then, choose to backup everything and let CCC do its thing.
When this is done, you should have a BOOTABLE (shouting intentional) clone of your internal drive. Before you swap drives, try a test boot by doing this:
1. Restart
2. As soon as you hear the startup sound, hold down the option key and KEEP HOLDING IT DOWN
3. In a few moments, the startup manager should appear
4. Use the mouse or arrow key to select the docked drive, then hit enter
5. You should now boot from the external
CAUTION! Once you get to the desktop, the new docked drive should "show up" EXACTLY as your old internal -- it's important not to get the two confused. You can check to see from which drive you're booted by going to the "About this Mac" menu item (right under the apple menu). I suggest you give the docked drive a distinctive name, and also change its desktop picture to remind you it's NOT the internal.
If you get a good boot, if everything looks as it should be -- then it's time to "do the swap".
Once you have the drives swapped, you can retain the old drive as a bootable backup, if you wish. Having the USB/SATA dock makes things like this EASY. Try it, you'll see what I'm talking about....