It's pretty hard to find the Work! pack. Here's a link: http://www.mediafire.com/download/on2uel36it9z5zk/WORK!.zip
Faithful is a great pack for both playing around with and pvp. There are a few packs within it, such as a low fire one (Perfect for pvp) and even a 3D pack, which just makes everything stand out really well. Recommend the low fire one, it works well.
Buy a $4000 computer and then run shaders the whole time, totally worth it and would look better than any texture pack...