Teh Mine's server spec is listed in Post 1 (msg:38140.1) if you want to get an idea of the speed required for the performance we get. The CPU is never maxed, the only thing I could do with doing is upgrading the RAM.
The hole was all dug. I think I used about 5 or 6 TNTs which really didn't make much impact. If you look in the hole at the stair/pyramid shape the first screenshots are under that so removing 1 layer of blocks will open the whole thing right up.
I did get bored of the hole and started playing around with other stuff in between digs. Had 9 buckets of lava at a time to do all that and only killed myself once :)
Yay, thank you. Can't wait to finish it. Coming up to half way soon I think. I don't mind digging away at it for a bit for it was getting very boring just doing that every time I was on there - needed a break to do something else and lava was a fun pastime.