simple way with computer
(you have one?!)

new Tascam US144MKII for 120$ (include Cubase LE4)
used mixer from ebay, starts up 38$ (Yamaha MG16/4)
new microphones for voice like Sennheise E822S (in europe for 40€)
new micro bassdrum AKG D112 (europe 160€)
overhead micros like Rode M3 (europe 79€)

alternative:
have seen a lot of "old" standalone recording studio with internal harddisk up from 100€
or some older tascams, have a lot of inputs, the quality is good enough for starting