I would like to supervise one or two honors thesis projects every year, and hire at least a couple of good summer research students. I have lots of ideas for projects, and I will match them to your interests. For summer research a fair amount of lead time is usually required to get funding.
Funding is usually a prerequisite.
Be sure you talk with profs enough to be comfortable asking them for recommendation letters, but ask them in any case when it comes down to it. Be sure to write the GRE exam, both to get a sense of where you stand and to open up the possibility of grad school in the States. Before your final year, and at least once a year, have a look at the glossy physics mags Physics Today and Physics World , as well as the prestige journals Science , Nature , PRL , and PNAS , for groups and directions that get you excited. In your final year call them up and ask them if they are taking students. If not ask them who else they would recommend.