Phase diagram for first 10 elements
This may be what suffices you are looking for :


Periodic Table of Elements w. Selected Phase Transition Temperatures



This may get you started:


MatDL - The Materials Digital Library Synopsis
NIST SRD ( I would write them)
Java Applet: Phase Transition Temperatures (untested)


It is a very good question, which I came across as well. You could just google-image search phase diagram + ELEMENT to copy and past the most appealing charts into a table in your editor of choice.
If the intend is personal use, this might be the fastest route.

wolfram alpha should allow you to look up the state of the element at a given pressure as follows:

sodium phase at 0 bar


Helium itself is a particularly interesting subject.

I hope this helps for a start...