I have a Monster HTS5000MKII that solved several small problems for me, but I will no longer purchase or recommend Monster products. Other companies make products that will do the same things.
(See the thread in Audio Theory, Setup and Chat on Monster's litigious practices.)
In any event, whatever you try, make sure the store has a decent return policy, because if you bring it home and you can't hear/see any difference, take it back and get a top quality surge suppressor.