I'm in the same situation (50 Mbps uplink at one place, 100Mbps at another) and that's enough to do all hosting for hobby projects at home, which I really love.
Instead of exposing my home directly using DynDNS, I got a really cheap low end server (currently a VM w/ 1 CPU, 512MB RAM and 400mbps traffic flat) for 1€/month that proxies all traffic to the (hidden) servers hosted at home.
The spec is enough to reliably run a HAproxy that can max out the available bandwidth w/o sweat and it allows me to do failover between servers in my two "home datacenters" + possibly cache assets.
Instead of exposing my home directly using DynDNS, I got a really cheap low end server (currently a VM w/ 1 CPU, 512MB RAM and 400mbps traffic flat) for 1€/month that proxies all traffic to the (hidden) servers hosted at home.
The spec is enough to reliably run a HAproxy that can max out the available bandwidth w/o sweat and it allows me to do failover between servers in my two "home datacenters" + possibly cache assets.