I like Mozilla foxfire browser and Mozilla thunderbird for email , I use SpywareBlaster , Adaware , and I also would stongly recomend you stay away from Norton & Symantec products ! for AntiVirus, you can get 1 year free ( full version ) of Computer Accoiates AV ( the very same AV engine that ZoneAlarm Secuirty Suiet uses, thru the Microsoftsoft Secuirty website under downloads, trials & secuirty other software , It works fast , updates constantly and is a very small foot print .
Also you can "snooze it " for gaming ( easy ) . Uses very little resorces ...