I know that this probably isn't exactly the answer you're looking for, but probably a good way to get an idea of what you want is to read through the various posts in this topic, then check out a couple of the hardware review sites like Tom's Hardware andAnandTech. This will give you an idea of what kind of system to build ( I want to build one that is extremely reliable and fast of course with plenty of storage and plenty of room to grow as well! -- don't we all!). Then when get some specifics it'll be a little easier to help with your request, because if I list a lot of great hardware it'll be my dream machine not necessarily yours......
Links list:Computer Links
468th Rule of Aquistion: Debugging of software is foolish, there is much profit in updates and upgrades.