Tell us more! What other stuff do you like? There are tons and tons of different sorts of Electronic Music...
I'm going to second the Of Montreal if you're looking for more catchy, hooky, indie-pop electronics. These are probably good to start with if you're just starting to get into electronic music. Beck's last record, Guero, also incorporated some more accessible songs with some synth and band insturmentals. I'd also recommend for starters:
The Dandy Warhols
Figurine
The Faint
Le Tigre's Self-Titled album
New Order
any Air record, ESPECIALLY Moon Safari or maybe even Talkie Walkie
VHS or Beta
Whirlwind Heat
and STARS (esp. if you're digging Broken Social Scene)
All of that has other insturments in addition to synth, and is very accessible. Start with some of that.
And if you're feeling more brave check out Deerhoof or Lightning Bolt...but you might not be into that at first