I swore to myself, even if I have two or three kids that I would NEVER buy a minivan, but that's me. Based off the specs you gave me, with $20-$22k to spend and buying USED, I've made a couple picks for ya...
2002 Cadillac Escalade -- $21995 with 86k miles on it (located in Madison, WI)
12-15MPG CITY, 15-18MPG HWY
Has the screens in the headrests already with what appear to be wireless headsets!
I could definitely see Vogel Stylin' in this Ride!
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2004 Cadillac SRX -- $21998 with 59.5k miles on it (located in Brookfield, WI)
15–16MPG CITY, 20–23MPG HWY
3rd Row Seating, Fully Loaded, 320-hp, 4.6-liter V-8 (also avail: 255-hp -- 3.6-liter V-6)
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2006 GMC Envoy SLT -- $21995 with 47k miles on it (located in Belleville, IL)
15–16MPG CITY, 20 – 21MPG HWY
My father had one of these and I really enjoyed driving it, lots of rear space!