Only just remembered - I've seen advertised; a very low melting point solder that you alloy into the solder already there, it lowers that solder melting point and makes removal much easier.

Yeah with no damage .. Its really nice to have when you do smd repair work ....
Personal if you can get by without buying a hot air rework station the go ahead and take your time and learn on scrap PCB
I picked up a hot air rework station for $25. Shipped but I might only use to repair my 2 Xbox 360 or maybe some heat shrink tubing ... But at the end of the day it has limiting uses unless you work with smd all day everyday and could put to good use ..

 

Seems like it would need 50W soldering iron.

I would use a 40watt large tip cause of the thermal mass and the small irons will have a hard time heating it up with such a large mass..

 

Only just remembered - I've seen advertised; a very low melting point solder that you alloy into the solder already there, it lowers that solder melting point and makes removal much easier.

When ordering the solder from the above suggestion what do I need to specify.

 

This:
http://www.zeph.com/lowmelt.htm

 

If you want to be careful with other parts on the board (especially those plastic housings for the ethernet ports), go grab some aluminum foil, and cut a hole roughly larger than the size of the component you want to remove. Press the aluminum foil down on the board in a manner that very heat sensitive components (like the plastic housings) do not touch the foil directly, and adjacent components are simply covered while the part to be removed remains visible. This generally gives plenty of shielding to the rest of the components.

The best tool for getting these (and other high density SMD chips) off the board is this:

You slide this under the chip body or leads (similar to how someone else mentioned with wire), put some tension on the chip, then heat evenly with your gun. When the IC is ready, the IC will pop out of place (and sometimes across the room).

Many of these types of components are put on with lead free solder, which makes the process a little more difficult as the solder takes more heat to melt.

This is the one I was trying to suggest. Worked for me.