MobBoss
Off-Topic Overlord
MS Security Essentials.
Havnt had a single issue since I started using this.
Should one worry about dust on a computer case as long as its clear around any vents.
Only in that its an indicator of how much dust is getting into the computer. Dust will eventually grind your fans to a halt which will lead to over-heating problems. Best to pull the panel off and use a can of air to blow out the dust bunnies if your case is that dusty as well. Do it every so often when you have to wipe your case off for dust.