So... I'M DONE! It turned out nice, but like I said before, I could have done it a lot better if I had better tools (and I wasn't building this in a dorm room...) I painted and sealed all of the wood, then I started putting everything in. (After like two days of drying).
So after I put the pump in, plumb everything up, I was like, "Ok cool it works wonderfully." so I unplugged the pump. Now at this point I had my pump line (aka water IN for the tank) near the gravel of the tank. I had the top and back closed at this point, and I didn't think anything of unplugging the pump. I had faith in my design. I didn't realize that the water would drain OUT of my water IN line, BACKWARDS through the pump. Needless to say, a quarter of a tank of water later, I realized my mistake. (Mainly when water started dripping on my leg, did I mention I was sitting less than a foot away from a tank at this time.) Luckily I hurriedly made a siphon out of a piece of tubing and I started draining the tank, only then did I realized that it was my water IN line that was the culprit, so I simply pulled it out of the water and everything was fine. I learned that I'm going to have to have the water IN line near the surface of the water, which isn't a huge problem. I'll point it downward so that it mixes up more water.
Ok ok ok now that I've told my story, here are the pics!!
The tank is about 3.9 gallons, and the sump is >1 gallon, so the whole system is about 5 gallons
Here's a pic of the sump with my heater and pump in it.
Here's a top view.
And a pic of it in the frame. Here you can see the three return lines, two small on the left and right, and one large in the middle. The line from the pump is the one directly to the right of the big tube.
And now, THE FUN ONES! NOTE: The back "door" was off during these pics, cause I need to get better hinges, so you can see the light shine through on the wall. And I need to cut a notch for the cords. ALSO NOTE: The tank had a ton of little bubbles on the inside of it, so it looks dirty, and the tank is dirty so... it looks dirty... :p Oh and the girlfriend insisted I make a rock cave... it came out OK, not great, but the bad parts can be hidden with plants. How did I get the big rock cave in through the tiny hole in the tank? Well, think of it like building a ship in a bottle. (Aka we built it in the tank, it was actually kinda hard) AND!! I have driftwood coming TOMORROW! So the tank will have a nice driftwood centerpiece, I'm quite excited.
Criticism, comments, congratulations, etc... all are welcome. Last NOTE: I, by no means, think this is perfect. But the cool thing is I can always rebuild the frame, cause the tank is removable.
EDIT: The one REALLY annoying thing... the table it sits on isn't level, therefore the water level isn't... well... level... It's annoying.
EDIT2: The water IN line is just hangin there as of right now, that's why it's just like in the middle of the tank.