Don't underestimate perennials in making your gardening life easier. Perennials will continue to come back every year and will only require minimal maintenance such as weeding and fertilizing. You'll save time by not having to plant and care for seedlings
I like the more modern look of this fence, nice and light. Just occured to me through that if I have a long garden do I want a horizontal fence or would I create a better space with a vertical fence to balance it out?