First let me say hi, I'm the new guy!
My tank is going to be an experiment in recycling. All the equipment (except the bulbs) will be "used and thrown away" parts that I've been able to scavange for little or nothing.
Here's what I've got so far:
20 gallon L with a REAL UGLY 1" drain drilled, chipped along the side edge from LFS. - Free
10 gallon with hard water stains for a sump from the same LFS. - Free
Old ReefLake brand wet/dry
acrylic sump, missing everything but the shell from same LFS. - Free
A piece of 3/16" glass to replace the above chipped egde from local glass shops scrap bin. - $0.80
16 lamp ballasts (NO) out of fluorescent fixtures from the scrap heap where they are tearing down the old Safeway. I'm sure I can find a couple that work. - Free
A box full of smallish powerheads and accessories I got several months ago from the flea market. - $5.00
A 595gph pond pump (peaktop brand) from Dad, who recently upgraded his koi pond. - Free (thanks Dad, even though I didn't ask and just nabbed it from your shed. )
A mountain of 1/2", 3/4" and 1" PVC fittings and pipe scraps from a friend who runs a small HVAC company. I was lucky to be there using his gas welder the day he cleaned house. - Free
2 12k 24" lamps and 2 True Antic 24" lamps from LFS. - Used store credit rec'd from evil Xenia trimmings. $22.00 at wholesale cost, but free to me.
A 40" long x24" wide x40"tall solid wood stand. I think it used to be the bottom part of a china cupboard. $6.00 at a yard sale.
Scrap wood to build a canopy from local apple packing house. They use it to mend large bins, and after cutting a 12' piece there is a 44" section left that's too short for them to do anything with. - Free
So far I have $11.80 tied up in this.
Parts left to aquire -
baffles for fuge
a heater
parts for my DIY skimmer
some eggcrate
power strips/timers/misc electrical equipment
I know 20 gallons is pushing the limit for a nano, but I was planning on doing this anyway, saw the contest and couldn't resist!
Tank Specs -
I'm going to use NO fluorescents overdriven (20w lamps at 32w) enclosed in a unique canopy design.
20L with the 10 sump, using the pond pump for the return. 2 outlets over the wall with DIY nozzles (unless someone has 2 hydorflos to give away

)
The old wet/dry sump is going to get drilled for a penthouse fuge. The wife and I both are fascinated with the idea of a thick salty algal jungle, so I'm going to showcase it right along with the tank. I'm thinking a 4" sandbed, some live rock rubble, and a breeding population of
white shrimp. Of course a seperate compartment for chaeto. I'm going to cycle the fuge seperatley for a while lit 24/7 with no water changes to see what will sprout from the rock.
Livestock -
Soft corals, maybe MAYBE a couple LPS. Maybe.
A pair of skunk clowns.
Usual suspects for the cleanup crew.
A pair of scarlet cleaners.
White shrimp for fuge.
Sand sifter stars for fuge.
Assorted Macro for fuge.
I'll snap some pics of my accumlated junk later today.