Capcom recently added on their website this page, offering several bundles available for this Christmas only. Three of these bundles are about the Blue Bomber, each being a great way to get into a series you haven't tried before:

• Mega Man X Holiday Bundle: contains Mega Man X4, X5 and X6 for the PSX, X7 for the PS2, and a t-shirt small format.
• Mega Man Zero Holiday Bundle: contains Mega Man Zero, Zero 2 and Mega Man & Bass for the GBA, as well as a t-shirt small format.
• Mega Man Battle Network Holiday Bundle: contains Mega Man Battle Network 1, 2 and 3 White for the GBA, with a t-shirt small format.

As far as I know, these packs will only be available through Capcom's online store. The prices are lower than it would cost for each item bought separately, and you get the t-shirt as a bonus. Also, shipping to the US is free for all of these! Act now to be sure it's delivered in time for the holidays.