Finally completed my powered rail system all the way down to the bedrock. It's a fun ride down, but even more awesome being able to ride it back up. Sure took a lot of gold though. I've finally started putting some time into my house and took some screenshots.
Front view of my house (haven't done anything with the dispenser yet...just wanted the achievement, lol). I added the overhang today because more and more spiders kept getting up there. I had three up there at once yesterday. Crazy!
1st Floor...not sure what I'm going to do with it. It was my starting point, and now it's just kind of a work area/safe haven, complete with two button operated steel doors.
Entrance to my rail system. It had to extend pretty long across my floor because of the clearance needed to avoid hurting yourself when riding the minecart. So, I blocked it off with my chests, crafting table, furnace, etc. so I wouldn't fall in accidentally. The very end (barely visible in picture) is blocked off by a single fence post, which works nicely.
2nd Floor...I love my world. In this very small space, I've got snow, sand, grass, big trees, ice, fresh water, a giant natural cave (which I dug out first, before building my rail system...the two are now connected). Having all the windows is great for looking out for creepers in the morning. And the skylights allowed me to see where the spiders were (though hopefully that won't be an issue anymore).
Closer shot of the view at sunset. I love how this game can make such beautiful landscapes using such simple designs.