If you want the classic/warm tube sound, a Conrad Johnson PV-5 or and ARC SP3 would be great. Both ARC and CJ will still support/update these products with their top-flite service.
A friend of mine used a VTL 2.5 with 2C's (he recently moved on to the 3A sigs but kept the VTL in the system).
I would also recommend looking into Quicksilver's line of products. You can usually find their linestages for well under $1000, and I've seen several of their full function preamps go for right around $1000. You could also consider a modified Dynaco PAS-3 from tubes4hifi (VTA).
A friend of mine used a VTL 2.5 with 2C's (he recently moved on to the 3A sigs but kept the VTL in the system).
I would also recommend looking into Quicksilver's line of products. You can usually find their linestages for well under $1000, and I've seen several of their full function preamps go for right around $1000. You could also consider a modified Dynaco PAS-3 from tubes4hifi (VTA).