List of Add-Ons, Suggestions Please

OK, I have 1.3.8a and these are all of the add-ons that were suggested to me. I actually went through the entire add-on list to find all of the ones I'll need.

If there are some that aren't compatible with each other, please let me know. I need suggestions. Yes, I'm new and haven't made any changes other than adding the Cherry Zen template and adjusting it (css file) for my site.

Google Checkout (I guess this one needs to be installed first)
Ultimate SEO Urls
Image Handler 2 (For mult images)
Super Orders
Sitemap XML (prev Google Sitemap)
RSS Feed
Google Base Feeder
Google Analytics
Cross Sell - Just Another (To fill in that blank area under item)
Meta Tag Character Limiter
Edit Orders
Improved Attributes Controller
Easy Populate (My items are all in a spreadsheet in Excel)

Yeah, it seems like a really long list for sure. However, they've all been mentioned by at least one seller.