If someone handed me $1500 today and said buy me a bass rig, and to get me the most for that money, I'd call up Ron Anchak and tell him to build me a 15/6/1 fEARful. (Invest in great cab first.)
Then I'd buy a Peavey IPR 1600. (Good power next, and for cheap.)
I'd then have a hundred bucks or so left for a pre, to get the sound I want. It's a little short, but if the bass sounds good, you can get by with something minimal here for now... it's the easiest part to change or upgrade in the future, and really the only part that could ever need it. So I'd go bargain hunting for something used. I've heard there are little decent tube pres (simple, no features or eq on board) for $60 new if it came to that. Or preferably save up for another month or whatever to try to get something good.
Or if that won't work, forget the Peavey and get my choice of good small head (GK, Carvin, Ampeg, etc) in the $400 range. Plenty of power for what you do now. Or hit craigslist or other classifieds for a good used amp.
That is, if it were me. That's almost enough to go for one hell of a rig all in one shot, and save you from experiencing much of the wallet draining horror of GAS.
