since there was a bit of interest, here's a list of some tools that will allow for some basic maintenance.

metric hex keys--used for all sorts of important things. a good place to spend some cash. 2mm to 10mm is the most versatile. park, wrench force, bondhus, pedros......all good.

crank puller--pulls the cranks off the bottom bracket spindle. i like the park cause it's got a handle already welded on (no adjustable wrench to fool with) but look around. if you have a splined crankset/BB you'll need to get the adaptor for use with the puller OR use the self extracting bolts that came with the cranks.

*bottom bracket tool--removes the BB from the BB shell. pedros and the ones sold through performance are really great cause the teeth haven't been chamfered so there's a better interface between the tool and BB cup. also, there are two types of BB tools, one for splined BBs and one for square. make sure you read the labels and save yourself a second trip.

*lock ring tool--removes the lockring on the cassette.

*you'll need either an adjustable wrench and/or a socket wrench for use with these.

chain whip--holds the cassette while you remove the lock ring. nothing fancy so don't buy anything gold plated. and if you have a worn out chain, keep it around as a backup, in case the one on the whip breaks.

cone wrenches--for adjustment of most any hub. available in increments of 12mm-18mm. shimano's cones need a 13 or 14mm and the lock nut is either a 16 or 17mm. some hubs use a tap axle or other unique type and may or may not need cone wrenches to adjust. get the LBS and find out.

cable cutters--cuts both cables and housing. again, spend a bit of cash here. get a sturdy set AND keep at least two feet of der. and brake housing on hand, in addition to, one extra brake and der. cable. most shops aren't open 24 hours and it seems that parts are needed most, when shops are closed.

chain tool--for removal and installation of chain. spend a bit here too, some tools come with cast tips. the tip will bend or break and ruin a ride.
pedal wrench--yup, you guessed it, removes and installs pedals.

misc.--flathead and phillips screwdrivers, a few sharpened spokes (you can do all sorts of things with these), metric ruler, light oil in a drip bottle, tube of grease, fork lube, chain lube, clean rags, plastic/rubber mallet, cable caps (caps on the end of the cables), ferruls (the caps on the end of the housing), and zip ties.