I have the gem bag, coal bag, scroll of life, and scroll of cleaning so far. I've been very pleased with all my purchases. The coal bag is very nice for the mining training that I do, which includes ~7 sc picks, penance horn, concentrated coal rock, a BoB, and the coal bag. I spend a lot of time raking in mining exp and not running to bank. You've already got the scroll of life, which is handy. I'm working on getting higher herblore so I only recently bought the scroll of cleansing, but I hear good things. The arcane stream necklace I know you'll be hearing is a must for any serious combat magic with a SoL. Most of my smithing is 1bar items, so the efficiency scroll is meh. I suggest you consider the same, what do you end up smithing the most? Saving up for one of the piety-like prayers would be nice, I'd vote for the range one over the magic one. After that, I'm thinking anti-poison totem for it's utility, then maybe a split dragon-tooth necklace and bonecrusher for the hell of it. Hell, maybe a Sneakerpeeper is you're feeling fancy. These are mostly things I'm considering, so take my opinion for what it is.