Itinerary Draft..making the best use of a 7 day JR pass?

Just found the N'EX & Suica pass online. How much would you budget for traveling around Tokyo for the first 4 days (before activating the JR pass)? We will probably be staying near Akihabara Station and going to many different attractions around Tokyo (haven't decided on which ones yet).

If you're staying near Akihabara, then I may recommend the Keisei Skyliner + 2day unlimited metro pass deal from Narita coupled with an additional 2 day Tokyo Metro card deal. That should come to ¥3,960, which is a bit more than the SUICA+NEX but will mean you don't have to worry about overspend in Tokyo as long (as you stick to the Metro), and the Keisei Skyliner also stops at Ueno which is super close to Akihabara.

As an alternative, you could get the SUICA+NEX and Pay as you go. Assuming each public transit trip within Tokyo is around ¥150-180, you can fit 8-10 trips into the ¥1500 prepaid SUICA card that you get included with the SUICA+NEX deal before you need to recharge it. This will mean you're limited to around 2-3 trips on public transit per day if you don't want to top up the SUICA card. If you're anything like me I think that number will be closer to 4-6 public transit hops per day so you may well be better off with the unlimited Metro Pass.

About your JR Pass travel, yes. You're making the best use of the JR Pass by using it for your long distance trips. Looks like a great trip btw!

Hope this helps!

The super-cheap method to get into Tokyo from Narita is to use the regular Keisei train which only costs 1000 yen and delivers you to Ueno which as Mari says is not far from Akihabara (about a kilometre to the north). It's not as fast or as comfortable as the Skyliner or N'EX but it's cheap.

There aren't a lot of hotels around Akihabara station particularly; I normally stay in the area around Ueno station myself, especially along Askausa-dori running to the east of Ueno station towards the river.