-well first of all you shouldnt list individual upgrade costs, it's against forum rules
-tactical squads can take up to 1 special weapon and up to 1 heavy weapon when they number 10 marines. you can't get 2 of either though.
-devastator squads work best when you take the same weapon for all 4 guys, because otherwise you're wasting shots no matter what you're firing at
-only 6 models in terminator armour can fit inside a land raider. this is fine if you're going to combat squad the termie squad though
-that said, the land raider crusader or redeemer are generally better buys
-also, assault terminators (with thunder hammer/storm shield) are pretty much the best unit in the marines codex. if you're taking the regular ones for your own reasons, that's cool, just know that generally speaking the assault termies will do better.
-lysander is lots of fun; something to consider if you start going with bigger lists is that he is really good with sternguard.
-land raiders work really well with dreadnought or land speeder support. something to consider as well
Read mah blawg
Space Wolves, Space Marines, Blood Angels, Tyranids, Daemonhunters, Eldar, Tau