lamp replacement

[dmxoneiuv]

i was playing some ps3 earlier and all of a sudden i heard a pop and the tv went blank...turns out the lamp went dead on my sisters Sony KDF-E60A20. its a pretty nice sized tv, although only 1080i, but i have my 42 inch westinghouse 1080p lcd as a backup (makes it look so small compared to my sisters tv) but its in the basement which is unfinished (new house). we should be getting started on finishing it these next few weeks which will end up being my bedroom/entertainment room.

so i went searching online for prices on replacement bulbs and also some help from avsforum so i know from what people are saying there is to stick with the Osram XL-2200 which is the exact same model Sony uses in the tv. my question is, for those who have had to replace their tv lamps, should i just get the lamp by itself or lamp with housing? any suggestions/help would be appreciated, thanks.