Possible Duplicate:
Ubuntu 64bit vs 32bit
I've been using 32 bit Ubuntu for the last couple of years on my development machine.
I generally write web apps in php.
I would like to use a 64 bit OS for the obvious reasons but wonder if there are any Got-Ya's that I should know about.
For those that are using a 64 bit version of Ubuntu, is it as straight forward as using the 32 bit version, or are there issues that one needs to be aware of?