I'll add the Pricepoint Sette ST-21 basic tool set to the list:
(although current price is $45, I got mine for $35, so it's worthwhile to shop around for sales)
http://www.pricepoint.com/detail.htm?stylePkey=14585

The Sette Torx ST-21 toolkit contains:
-Spoke Wrench
-ISIS & Shimano Crank Remover
-Hub Cone Spanner (2 pc/set)
-Puncture Repair Kit including: patches, cement and sandpaper.
-Bottom Bracket Cup Tool
-Philips Head Screwdriver in 2 sizes
-Flat Head Screwdriver in 2 sizes
-Cassette remover w/ guide pin
-Cartridge BB Tool for Shimano & ISIS
-Lockring Socket w/ Stabilizer Post
-Chain Whip
-Pedal Wrench
-8mm Long Hex Wrench w/ Socket Adjuster
-6 Hex Wrenches - 2mm, 2.5mm, 3mm, 4mm, 5mm and 6mm
-Adjustable Wrench
-3x Steel Tire Levers
-8 & 10mm Open Ended Wrench
-Chain Rivet Extractor
-Headset Wrench
-Nylon/Fiberglass Tire Lever Set
-Hard Carry-Case w/ Foam Protection Insert

As td wrote above, the best thing is to look at what tools are required by the tasks in your plan, and buy accordingly.