Two things to remember with Steam:
1) Always wait for sales to spend money. They have sales literally every day (Daily Deal), every week (Mid-week Sale), every weekend (Weekend Sale/Promo), every once in a while, weekly sales for games of specific companies, and twice a year pretty big 12-day sales marathons, albeit a lot of kickass games can be bought for ridiculous prices, if you can just wait.
2) Your Steam account, is YOUR Steam account. You do not lend it, give it, exchange it, play with it, use it for whatever purpose, the same way you do not lend/give/exchange/use your woman or your car. Remember to take good care of it and keep your friends list small, remember to check everything in Steam once the client starts to ensure that you know where to search if you want to find something, make sure you're the only one using the account, make sure you activate legally bought and owned games (there is a trend of stolen keys from eastern Europe and Asia being stolen and then re-sold, and Valve is closing down accounts or removing said games from shelves, or asking for evidence [photos] of a game and its cd-key) and then game on.
Post edited November 23, 2011 by Fifeldor