I'd go for a mesa 2/12 vertical. Can be had for pretty cheap on craigslist. The bottom speaker is sealed and ported. The top is open back. It is great for recording. Very tight but open.
the black shadows that come in them are great middle of the road speakers that work for just about anything. and if you get tired of them (which you prolly won't), you can throw a EV12ML in the bottom for even cleaner tighter bass and a sparkly fender style speaker on top.
got mine for $300.
...also forgot to say they're pretty ugly. LOL.