You don't get to use the DS? You either mean someone else is using it (son or husband I'm guessing) or there haven't been any recently released DS games that have caught your attention (now if nobody is using it, I'd be more than happy to take it off your hands

). If that's the case, then I would have to recommend on Professor Layton and the Diabolical Box.
As for PSP, hmm as you know I'm an avid Nintendo fan so I really don't pay attention to other platforms. In all honesty, if I had a PSP I'd mostly use it to watch movies & play music. There aren't a whole lot of games that have caught my eye for the PSP. The new Gran Tourismo game looks good, so does the new Metal Gear game (but I'm not a fan of FPS that doesn't have a sensor gun with it), and Guitar Hero (looks lame without playing on guitar...maybe they should make DJ Hero on the DS...). I've heard good things about the Daxter game (Daxter from the Jack & Daxter series), Patapon, and I believe there is a Spyro the dragon game for it as well.
In all due respect, I hope you didn't buy that new PSP GO. Sure it takes in downloadable movies and games but since technology becomes twice as good every few years, it's only a matter of time before they make a PSP with an even better hard drive (not only that, but with a larger library). Another complaint people are getting from the PSP GO is that it isn't backwards compatable(no UMD disks), it doesn't have a large online library yet, and it isn't piratable (which is good when it comes to legal rights, but not everybody follows the rules).
As for me, I'm sticking with my DSi (which I'm using right now to be online and slowly type out this VM to you letter by letter). I'm just waiting for Spirit Tracks to come out...
-BGS