Wide Angle suggestions??

Hi all:

Can anyone suggest wide angle lenses for a TRV 900?
I'll take from great to worse with price ranges, if you please. I'm taking the worse so I'll know what to avoid...
And I guess I'd need a Step up or Down ring as well, Correct?

Thanks

I bought a sony VCL-0752H, which sells for about $150.00 on sony's website. I found mine on ebay for $29.00. In my opinion it works great.


PS. It has 52mm threads which is what the TRV900 has.