Im a firm believer in XM---have it in my car (via Pioneer) also the house plus I purchased the XM boombox---XM just went commercial free and added a dozen new "channels"...
The PCR is the cheapest entry, your antenna is snow friendly so forget the need to bag it, I havnt had a problem with rain and tested it recently with a large storm (few and far between here) your music listening experience as you now know it will change DRAMATICALLY---I ported my inhome to the computer so I could record the XM signal---if you can spend a few more bux check into the XM Roady, they offer a free inhome or car connect and its just over 100$---also check out the XM fansite before purchasing, it may assist in you making a wiser purchase...
XM has
INCREDIBLY changed my music listening experience...
Fansite =
http://www.xmfan.com/index.php