The best thing about most Apple product announcements is that the products themselves are available within a few days. The new iPad Pro and the iPhone SE are available for pre-order from Apple's online store and will be available in stores on March 31st (with deliveries happening around then up to April 4th if ordered now.)
The iPad Pro (9.7-inch) is available in four colours (Silver, Gold, Space Grey and Rose Gold) and comes in 32GB ($799), 128GB ($999) and 256GB ($1,199) configurations for Wi-Fi and 32GB ($979), 128GB ($1,179) and 256GB ($1,379) for the Wi-Fi + Cellular models. The Smart Keyboard, which is necessary for the full experience, will cost $199.
iPhone SE comes in the same four colours and unlocked versions are 16GB ($579) and 64GB ($709).