about clustering

hello all.. a bunch of sweet words on how much this site rocks and everything(really, i just don't know how to write such stuff)

now am a computer science student, entering my final year.. am thinking about a graduation project..

i have my mind set on doing something related to cluster computing.. i (personally) think it's a really neat subject, it may be needed in the near future as computer usage increases rapidly and the needs for high performance computing without paying tons of dollars is demanded by many organizations.. also i think of it as a good way to improve my gnu/linux capabilities and FOSS knowledge.. i have many other reasons to go on with this project, so long story short; i want to do a graduation project related to cluster computing.. now i have some questions.. - first, I'll appreciate any resources related to the subject, i of course found a lot of materials on the web(me love google).. but it'd be nice if someone pointed me to some of those underground, hidden, unknown, that are not too obvious to found and you had to bookmark it so u may make use of it one day kind of pages.. (i found alla mentioning that he wants to write something about clustering in more than one place of his writings) - secondly, and this is more important, i want to hear your opinions on what exactly can i do using clusters that can be useful as a graduation project.. because as i dig deeper on the web, i find that the subject is much more easier than i thought it would be in the first place, every thing is already implemented.. it'll get down to just connecting bunch of computers with a LAN, then install a clustering distro to each node, and walla.. it's done(almost) so the issue now is what is going to run on the system, this is gonna be the sole benefit of the project, and this is my question.. i thought about some stuff:a web or database server, or any kind of server to make use of high availability and load balancing.. running a high demanding application that needs huge processing power..(am thinking about just installing one of those clients that work on large research projects) some other lame ideas.. ok, after i wrote this.. i thought it would be too large to post here, so if you find this post not informative enough, please let me know, and i'll explain more.. waiting for your comments :) thank you very much.. and keep the good work