Best NDS Emulator??

Yes, what is the best NDS emulator??
I have just started downloading some new NDS Roms, so yea...
LOL so, if you know which emulator i should use for a not so good/not so crap computer, post here ;D

Definitely no$gba and then iDeaS.

and whereabouts would i be able to download the most recent versions of said emulators??
would you be able to provide links??
thankyou ;D

2.6a of no$gba is available here. http://nocash.emubase.de/n-west-w.zipiDeas http://www.ideasemu.org/index.php?act=downloads