Hi friends, got a question about equipment

Hi friends,
I own the 8.5 sonar version with an APRO-500 and the e-mu 1818 sound card.
Now everything works great for me, but recently I decided I want to start recording vocals and bass.
so here is the problem, I have no idea what should I buy with the lowest sum of money for getting high quality recording.
I guess all I need is an analog mixer with a phantom and a dynamic mic.
can you help me to find the specific models of the items I should buy?
thanks in advanced,
Ami.