Costco is offering $50 off their 2-pack of Oral-B Genius [costco.com]
rechargeable toothbrushes, bringing it down to $99.99. These are equivalent to the Genius 8000 [oralb.com]
series with Li ion batteries and
travel case. Deal can also be found in-store to avoid shipping costs (and potentially for lower price - YMMV).
This can be combined with P&G beauty rebate
for $15 Visa prepaid card (with a purchase of $50 or more) to bring the total down to $84.99 + tax.
Update: These do not come with the charging travel cases as originally posted. Sorry for the confusion.