What's a good store for electronic components like radio shack but not?
There are several excellent online stores to buy the radio shack like www.digikey.com, www.mouser.com or www.mcmelectronics.com. You can also try BestBuy as the people in BestBuy know what they are talking about when it comes to electronic components.
You can also check forums like www.huntcomponents.com
For high quality electrical components try www.astute.co.uk