All good posts with a +1 Trekkor's posts
Hardwood:
Make sure the wood is climatized for humidity and temp! (days)
Use a 'hammer' type stapler
Bevelled edges are personal preferance; I prefer not.
Lay out tons of pieces before the actual install and make sure the patterns read well; you dont want one light piece next to all dark, etc.
Engineered Hardwood:
Check into "this" product; much easier to install and performs way better during the 'warranty' periods. Both my BILs are in the biz and I've been around the block too; I would highly recommend this over 'real' hardwood anyday! Have an expert explain the diffs to you. Talk to a guy that has been installing for years and they'll recommend it imo.
Have fun, throw up some pics.