Hoy Bikes:
http://www.hoybikes.com/track
HOY Fiorenzuola (MSRP: £750. Approximately $1250USD)
http://www.hoybikes.com/track/94-hoy...ola-track-bike
Looks like a great entry to mid-level bike. No need to upgrade anything in the near future. Even the chain is a proper track chain (KMC K710). Comes with 48/14 drive train and 38cm bars.
I think this might be my new go-to suggestion for new serious riders!
HOY Meadowbank 650c Kids (MSRP: £450. Approximately $750USD)
http://www.hoybikes.com/track/92-hoy...ids-track-bike
This kids bike is AWESOME. So many parents have a hard time finding such a bike for young riders.