Look up Edifier. Pretty new on the market but awesome value for the price they are asking. Very wide range of products in all price ranges, too and most of them are actually pretty. Yeah.. I know... pretty speakers...
P.S.: Me and Lullaby have dis:

God Damit they're pretty!
I've been using Logitech for a while. I too had the Creative iTrigue 3330 speakers. But the volume controller was it's Achilles heel. The plates in the variable resistor would corrode and fail.
Logitech have some nice options out there. I'm sure you'll find something.
Or if your after an alternative, how about some speakers made by Corsair?
Corsair SP2200 Gaming Speakers - Audio System
Scan are selling them for £38.66 inc VAT. But I'm sure you could find them with other retailers.