It would depends on how empty the worlds you choose are, should be at least 150k/hr, but can go up to 250k-400k/hr if you find the right worlds & also depends on what area you choose
Set up an auto typer in w1 & buy all the uncut gems you can, at a reasonably low price & then sell all the cut ones on zybez as the market price. That way you're minimizing the loss & it will just take a bit more time to actually get your hands on the uncuts. But once you do, the xp gainz are great!
Slayer is always a good way, may not always be the best combat exp ( I know that's what you're after), but you'll 9/10 make profit & you're also leveling slayer, which can be one of the most profitable skills in the game once you get to the higher levels
http://runescape.salmoneus.net/forums/topic/286914-high-alchemy-guide/ This will give you the high alch value of most of the items, once you have that, you can decide what is the best to high alch, within your budget
Dunno whether they're still profitable, but Green d'hide bodies used to be good, yew/magic longbows.
For 07 - http://runescape.salmoneus.net/forums/topic/286914-high-alchemy-guide/
That will give the high alch value of things
For EoC-
http://runescape.wikia.com/wiki/Grand_Exchange_Market_Watch/Alchemy
& someone please tell me if it's against the rules to link other sites >.> I'm not trying to do bad!
1st one better imo, Just looks smooth & easy to read As mentioned beforehand though, the grammatical error did also pop-out at me too, lowering my opinion, other than that, I love it