Wide-angle lens for my 350D??

[dingo]

Anybody have suggestions?

I'm looking to replace the 18-55mm kit lens but not sure what to get. Now to be honest I don't want to spend huge money on it since this hobby still isn't making me a huge income and I prefer spending money on the WRX.

I had a look at the ES 50mm F1.8 MKII which is nice and cheap, any limitations?

Any help appreciated, thanks