Re: amn, rals & pgems
When starting Diablo2, its a good idea to collect all kinds of low runes from Tal and upwards(and maybe Ith and Nef). And all gems ofc, cube them up to perfect.
Also, collect all jewels you come across. The most popular crafting recipy is ral+perf amethyst+jewel. Try to collect these in packs of 20, because that way you get a better price when trading.