#1
I am currently tracking some acoustic demo's with my new Blue bluebird mic through a M-audio mobile-pre with my Alvarez acoustic guitar and was curious if a change to a Taylor or Martin would really make a substantial difference in my quality?

this is what i am using now: http://allstarmusiccenter.com/store/index.php?page=shop.product_details&product_id=19&flypage=flypage.tpl&pop=0&option=com_virtuemart&Itemid=18

This is what i am thinking of getting: http://www.guitarcenter.com/Taylor-2012-210-Rosewood-Spruce-Dreadnought-Acoustic-Guitar-H79556-i2287034.gc
ESP LTD EC-1000 vintage black
sunburst fender MIM tele
Epiphone LP standard ebony
Mesa/boogie dual rectifier
Mesa/Boogie .50 caliber plus head
Marshall JCM900 Hi-gain MII 2500
Fender Hot rod Deluxe
#2
this doesnt have anything to do with building or customizing that i can see. i would ask either in the acoustic guitar section (probably) or in the recording section (maybe).