88 watts isn't bad at all. If you don't want to get way deep into learning a system, just remember that higher wattage on a deck is clearer sound at higher volumes. Anything can sound good when you have the volume at 3. A good deck should stay clear ALL the way up unless of course, your speakers are not rated to deal with it. A good rule of thumb is to buy speakers that have a max wattage of at least 1/3 over channel wattage on your deck. 1/2 is even better. I say this because i have blown many a set of speakers in the past even though i wasn't hitting their 'peak' wattage.
If you have 4 channels x 22 watts, you want your speakers to be at least 40....and it's prolly harder to find a 40 watt set of speakers than the more common 100-125's you see on the shelves at places like best buy or wal-mart. The price probably isn't very much of a difference either.
