The castelli bormio or ganna jackets on on sale for $80 on bonktown regularly. If you go to the bonktown forum and ask the admin to put it on for a day, you may not need to wait for long to get them to show up.

I have the ganna jacket & can wear it down to mid 20's with just a baselayer and jersey.

You can also find Campy Textran Thermo jackets for under $150.