http://www.macconnection.com/IPA/Shop/Product/Detail.htm?sku=11527094&cac=Result
this one?
Now what exactly is a solid state?
Serial ATA 7-pin connector
<what is this?>
Up to 7200rpm performance
<is this how fast it goes?>
Spindle speed is 7200rpm / Buffer size is 32MB cache
<what is this?>
Stupid question, but I'm new to all this, but these type of drives work both pc and mac?
Yep, that one. Check Newegg also for price.
"Serial ATA Connection" just means SATA. It's the method of connecting the drive to the computer.
7200RPM is how fast the drive *can* spin, if it needs to. As a rule of thumb, faster RPM means it can find your data quicker. But to save battery, your laptop will spin-down the drive when it does not need access at that moment -- which is the vast majority of the time.
Buffer size -- Say you could read a book by flipping through the pages. No matter how big the book, you could read the pages at the same speed. This buffer is kinda like how much data is on a particular page for your computer to read at that nanosecond.
But the killer feature of this disk is the "solid state" part of it. "Solid state" means, simplistically, no moving parts. It's part of your disk, but it can read and write far FAR faster to solid state than it can to regular spinning disk.
So, the most-often-used data, up to 3GB of it, are always "right there", instantly ready. No waiting for the spinning disk to swing around to the proper position, no waiting for the little magnetic arm inside the disk to move to the right position and start reading. Instant, like *now*.
Your biggest challenge isn't all these terms, however. It's going to be the actual swap. Take a backup. Get a backup. Do a full Time Machine backup, and then I suggest Carbon Copy cloner to make a complete dupe of your current disk, even on to the new disk (assuming you have access to a USB/SATA interface device). You have a little homework to do, but 4GB of RAM plus a hybrid SSD/hard disk will make your MBP a screamer.
And before you begin, search! Print out how-to documents, read them first. Be sure. Find an IT guy or gal, buy them beer and pizza, get them to help if you are all shy about doing this. And don't be shy to admit that you might not want to do this yourself.
but by ALL means, get a backup, first and foremost.