So just bought Esso Trinidad for a tenner thereabouts from Amazon, and with some digging found a reissue of Hot & Sweet too, but i'll pick that up next week as I'm on a budget atm. Thanks for the help, though. It was only a matter of time before I got round to buying them....
*Scours ebay for cheap 'Discover America' vinyl*
DA is great on vinyl. Guys from Little Feat play on it, and the sound is big, fat, echoey and deep (e.g. on 'Occapella'). Go for it!