Hi Wobblycoot and welcome to the TS Forum :wave:
Firstly let me say that posting an email address on a forum like this is bad... very bad...unless of course you like spam, wait a while and type your name or email address into google and watch this page appear, thats how spam companies get your mail address and you end up with spam.
Now about your post, there are plenty of different enclosures available on the market, if you want to run a DVD or 3.5" HD then you will need one with a seperate power supply as USB can oly supply 5v, not the 12v needed for HD's or DVD's. Google is your best friend and also Ebay.
Regards