Take a look at iCrackedIt... Sorted me with my iPhone for cheap cheap.
One thing I only found out much later and something most people don't know is that all these replacement part don't come with the O.....(some technical name) coating. This coating is what prevents you i device from becoming a fingerprint magnet so also get a good screen protector after the replacement.
Soz to hear bout the iPad mateKnow how it feels....
Just bear in mind that (not all the repair shops tell you this) once a 3rd party has opened your iDevice the warranty is void. So if something unrelated to the drop goes wrong with the device the original store you purchased it from can refuse to replace it.
Apple really needs to come to the party when it comes to having an official presence and repair facilities in South Africa.