For an afforadable jacket take a look at Frogg Togg.

It is breathable, super light weight and you get the jacket with a hood and bibs for $85 retail or around $45 on Ebay.

Love mine, it is compfy, quiet, light weight and doesn't cost much but most importantly........I am always dry.
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"Just keep casting, just keep casting. Casting casting, just keep casting"

To the tune of "Just keep swimming" sung by Dori in Finding Nemo.