Due to some 3rd party requirements, I'm forced to add cURL to my Ubuntu. I don't mind so much, but I just want to make sure that it's not going to corrupt the current PHP stuff already happily running. (Version 5.3.2, etc. etc.)

Any reconfig nightmares I should be wary of before I start?

apt-get install php5-curl

Do that and you're fine Nothing will break it'll install the PHP5 curl library and add /etc/php5/conf.d/curl.ini

You just need to restart whatever runs PHP

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Thanks much. Silly question, I know, but better prepared for potential problems then....