Well, I changed it up completely. First of all, after going to 4 fish places (both lfs and petco and petsmart), I could not find a single tank in anything between 29 and 55, so I went with the 29. I asked if there would be any 37ish in stock soon and no store said they would. Also, after seeing the kits for only $120 I looked at my different options. I could spend $120 and get basically tank, hood/light, Whisper 30 filter, 100W heater, and bunch of stuff I have. Or for $150 get the same tank, same hood/light, AquaClear 50, and 200W heater. I realized the AquaClear will outperform the Whisper by alot. I also realize the 100W heater is alittle weak. Anyways, I went to a different place and found the same kit for only $90. I had to take it. I mean if the Whisper filter works, then Ill use it, if the heater works Ill use it. If either of the two (or both) fail, I can go out and get the AquaClear 50 for $35 and a 200W heater for $25 and come out exactly as I would without the kit, but with the new net, thermometer, and product samples for free. I figure its a win-tie, becuase I save money If the filter and all works out, and I am even if they both go out. I am still a bit down about not finding a 37 Gallon, but this 29 is better than my 10.