the event 20/20's are excellent nearfield monitors for the money!
I've never been a big fan of active monitors. sure, it prevents having an external amp, but it also changes the cabling requirements of the speaker.
passive speakers... one simple lamp cord.
active speakers... ac power must be supplied... signal cable must be of high quality to prevent hum.
active speakers also put fairly fragile electronics in a box that shouldnt be fragile. face it, if your gonna move the speaker around, you dont want the amp built into it. speakers are heavy and tend to get thrown around.
plus, an outboard amp is multipurpose. the amp in the speaker, is only for the speaker.
generally, i've never seen the need for powered speakers. or justified the cost of them with the multiple extra amps I have laying around.
if you want some serious monitors.. mackie hr824s. powered, perfect clarity, and a flat frequency response like no other. but very expensive.
ever considering a set of mackie srm450s or c300's? (srm's are powered, c300's are not, same basic speaker otherwise) -- IMHO they are the perfect cross between a studio monitor and a pa speaker. you get the PA loudness and long throw with sound quality that rivals alot of nearfield monitors.