I want to create a bunch of fresh, empty wallets with the standard client. (Why? Having multiple wallets is something I want for security reasons, and this is just a relatively hassle-free way to do it.)

The most convenient way for me to do this is using a Linux live distro, but I'm worried there my not be enough entropy on such a system.

Can I just check /proc/sys/kernel/random/entropy_avail and make sure this number is above 200? (I'm getting this advice from [1]).

In other words, does the client (or the libraries it's using) actually use /dev/urandom, and if so, what is "enough" entropy?

Thanks.

[1] http://major.io/2007/07/01/check-available-entropy-in-linux/