Hello e-note,
Click on the red HELP in the opper right corner, then select 'System Requirements'. That will take you to http://www.worldcommunitygrid.org/help/viewTopic.do?shortName=minimumreq which lets you see the download and upload requirements for each project. If you have a single core, you can safely run everything. If you use multiple cores, yoiu might want to exclude HPF2.

Lawrence

For several sciences, HPF2 and RICE the techs have set up a smart routine, that often does not require the download of a result, merely the flip of a switch to tell that seed-set X has been assigned to client Y. You then see a new task appearing in the queue without an actual file transfer... for HPF2 that a considerable transmission saving. Don't know what the statistical chance is that this happens though as the table that is transferred with a result is not everlasting.