tenida is correct....as per your query, i dont think there's on-site support for benq...i bought my monitor from a good seller, and he assured me that he'll handle the case if any issue arises...none so far....he's a good dealer too...recently one of my friends at nagpur encountered a dead pixel in his benq monitor, and he approached benq through his dealer, and his piece was promptly replaced with a spanking new one within 2 days ! so it would be a lot wiser to buy the monitor from your trusted/reputed seller. be in no doubt my friend, benq has superb monitors ! mine is kicking rock-solid !
as far as P2350 is concerned, i think it doesnt have an HDMI out...may be am wrong...need to check, and its also 23.5", not 24" true....also, i will share some links with you below...i was in exactly the same fix in which you are in now, about more than an year ago....the guy who started the thread in the 1st link below helped me buy my monitor...pls go through them, they're quite informative......also, if you want i could share a video with you, which's unfortunately been removed by the owner from youtube now...from that video you can get a good idea of the humonguous size of benq vs samsung/other monitor(s) shown in the video...here are the links though :
Samsung P2350 Vs. BenQ G2420HD (WHICH ONE TO BUY)
Samsung P2350 or BenQ G2420??
BENQ : Would you advise ??
also, you could chk out benq's E2420 model...retails for ~12-13k i guess...has 2 HDMI ports, a couple of USB ports too, etc....has speakers too, but anyway they dont sound much good...nevertheless you can easily use the headphone jack.....you can get this model too if it fits your budget....chk this :
Compare BenQ E2420HD and BenQ G2420HD Computer Monitors / Comparisons / LCD Monitors catalogue