I like how you think.You're looking at it all wrong. Equiptment is a necessary evil. My dream tank is large enough to not require any equiptment.
Personally, I would like a 150 gallon (or larger) with a built-in overflow (I do not want to plumb a do-it-yourself version together, this always ends in tears for me!) and a sump for growing duckweed and other plants. I don't really know what equipment I'd like for it, though. I've been very happy with AquaClear power filters and random sponge filters run on Tetratec air pumps. They're quiet, reliable, and simple to maintain.
Eheim does have a very good reputation. If you want fancy toys to aspire to, I would go with them.
I do know that I want LED lights, but haven't found a model/brand that I like. Sunlight Supply has a good plant light (screws into a regular desk lamp) but it does tint everything bright pink.