Are we capable of discovering planets in the Andromeda galaxy? I just watched this SpaceRip video on YouTube which shows pictures taken by Hubble while looking into the disk of the Andromeda galaxy to study a certain type of variable star. It occurred to me that if we can study individual stars in Andromeda, we must be able to use most of our methods of exoplanet detection on them. 
Is this true? If so, why not look for exoplanets in another galaxy? My logic tells me that since it's difficult to look through the disk of our own galaxy (since we're inside it), we're limited to a relatively local region for detecting exoplanets. But if we turned our sights to Andromeda, couldn't we study the differences in planet formation between different regions of a galaxy?
I also suspect that the reason we're not doing this is because we would need much more sensitive instruments for this, and because we already have one planet finding telescope in space (so it'd be tough to justify sending up another one).
Am I mostly right in this reasoning? Are we capable of searching for exoplanets in Andromeda? Would there be a benefit to doing it (besides the obvious cool factor)? Is cost pretty much the only limiting factor?
 A: In fact, the first exoplanet in the Andromeda Galaxy may have already been discovered:
http://news.softpedia.com/news/First-Exoplanet-in-Another-Galaxy-Found-113678.shtml
http://www.newscientist.com/article/dn17287-first-extragalactic-exoplanet-may-have-been-found.html
A: "It is one of the deepest and most detailed images ever taken of a galaxy outside our own." Just imaging those stars required Hubble-level capabilities, and that's child's play compared to exoplanet detection. I don't think that doing even the Doppler-shift spectroscopic method would be feasible for a long time to come. Plus, there's decades of work already queued up in studying near-Earth exoplanets, which are much more intrinsically interesting to the human race anyway. Extragalactic exoplanet study doesn't seem to add much besides degree of difficulty.
A: Unfortunately, it's highly highly unlikely. We're barely even capable of identifying individual stars within the Andromeda galaxy (and the ones we can identify, if any, are almost all supergiants - these are pretty much the only stars we can identify in the Local Magellanic Clouds, which are closer than Andromeda). Even if we were able to identify individual stars in Andromeda, effects like transits could be the result of dwarf stars rather than actual planets (since dwarf stars are far too small to be seen with any telescope that we can get in the near-future)
