Sol A is great for mages. It may take a few deaths to learn where everything spawns and how roamers path, but once you learn it you can really churn through the mobs.
http://www.eqmacwiki.com/eqatlas/solusekseyemap.html
29-33 Kindle area
Start at the room labeled 6 and clear back passed the room labeled 2. This area keeps you close to the zone lines marked A and B. Make a hotkey that does a /target kindle and /target singe.
34-38 Bar room
Pretty straightforward, I would recommend making sure you have killed the roamers before breaking into the room.
39-43 Gnomes
You can do the EXG spot, but usually it is camped and there are not enough gnomes for good exp. I would recommend starting with the gnomes closest to the lavastorm zoneline. Clear back to the lava/drawbridge area. Take the right drawbridge and kill gnomes in the long corridor behind the castle. You should only get 2 at a time. There is one roamer in the area behind the castle.
Anyone have any good spots 44+ other than sea furies and specs? They always seem to be camped up. I am killing ogres in Oggok, but the respawn seems slow and I have not dared going deep for fear of getting multiple HTs...