I have a LOT of apps installed, but before I being...you're on Sprint and you're not going with an Epic 4G or an Evo 4G? May I ask why? There is also the Evo 4G Shift coming out shortly for $150. I like the Samsung phones just fine, but I'd buy an Evo before I bought an Epic or an Intercept.
What phone you buy matters. Different phones have different size modding communities and what not. For instance, the original Droid (Motorola Droid on Verizon) has a MASSIVE modding community. My Droid runs at a stead 1.1 Ghz, which is faster than a lot of the newest high-end phones. It's just an example of the modding I've done, but you get the idea.
The Evo 4G has been consistently rated the best smart phone (including other OS's) on the market. I'm jealous that Sprint carries it and Verizon doesn't (though that'll be changing with the Thunderbolt--same architecture).
Aaaanyway, I'll add more once I hear what your decision is going to be.
XDA developers will soon be your best friends. :-)